In this blog, I’ll walk you through the different aspects of a softswitch – what is a softswitch, how does a softswitch work, class 4 vs class 5 softswitch, along with some real-world use cases. I’ll also introduce you to our powerful softswitch products, i.e., REVE Session Border Controller (Class 4 Softswitch)  and iTel Switch (Class 5 Softswitch). 

What is a Softswitch?

Softswitch is short for Software Switch, which is a core component used in telecom networks for call control and signaling as well as processing media streams. In layman’s terms, we can define softswitch as a software application that manages the connection between phone calls placed over the internet, i.e., VoIP calls. Acting as a bridge, a softswitch directs and controls the flow of voice, data, and multimedia sessions across IP networks.

How is a Softswitch Different from a Traditional Switch?

The primary role of any switch is to facilitate communication, but what makes the modern-day softswitch more versatile? It’s their software-based nature. I will explain this with the help of 3 key aspects as mentioned below:

Hardware vs Software

A traditional switch is a dedicated hardware system that makes use of circuit switching to connect calls physically. This is why traditional switches are also called hardware-based switches or circuit-based switches. These switches require manual configuration for their work. On the contrary, a software-based switch makes use of digital signals to route calls digitally or over IP networks. 

Rigidity Vs Flexibility

The conventional circuit switches get obsolete with time and need additional hardware for working in line within the modern communication landscape. On the other hand, softswitches are quite flexible and offer a wide range of features such as call recording, voicemail, conferencing, etc. 

Expensive vs Cost-effective

Traditional switches are expensive to maintain and upgrade, whereas softswitches run on standard infrastructure, making them a cost-effective and easier-to-maintain and upgrade option. 

How Does a Softswitch Work?

To understand the workings of a softswitch, let’s consider an example. Your phone rings, and you pick up the call and start your conversation with the other person on the call by saying Hello. From this very moment, the role of a softswitch comes in, and there are several key functions performed by a softswitch. These functions are:

Call Routing

The softswitch makes sure that each call reaches its intended destination following the most optimal route or path. To identify an optimal path, a softswitch considers various factors like network congestion and quality, etc. 

Protocol Conversion

To ensure seamless communication across diverse networks, softswitches convert voice signals from analog to digital and manage protocol conversion that governs the respective communication. 

Call Management

There are 3 key processes handled by Softswitches – Call Setup, Teardown, and Authentication. By overseeing these processes, softswitches ensure quality and security during the communication sessions. 

Softswitch System Architecture

The above image represents a typical setup of a softswitch system. Now, I will take you through the different components of a softswitch, one by one:

Media Gateway Controller: The Brain of the Softswitch

MGC or Media Gateway Controller is responsible for call control and signaling intelligence. From managing call setup, routing, features, and billing, along with interactions with other networks, all this is handled by MGC. Furthermore, this key component makes use of protocols like SIP or H.323 to communicate with other softswitches and gateways. 

Media Gateway

It is responsible for the physical media conversion and transmission of voice and data traffic. Media Gateways take instructions from Media Gateway Controllers, i.e., MGC, and send call status updates.  

Signaling Gateway

SGB or signaling gateway bridges different networks by acting as a translator for signaling protocols. It makes use of various signaling protocols to connect the softswitch with external networks. Furthermore, it is responsible for converting signaling messages between different protocols to maintain interoperability. 

Types of VoIP Softswitch

VoIP softswitches are categorized into 5 main types, with each softswitch performing a different functionality. 

Class 1 Softswitches are implemented in international gateways, i.e., handle high volumes of long-distance calls across different countries and continents. They are designed for wholesale carriers, managing large-scale traffic between various telecom providers. Class 2 softswitches focus on regional traffic, i.e., handling traffic between local carriers. Class 3 Softswitches are often used by ISPs to connect with larger carrier networks or the PSTN. 

Now comes the most widely deployed softswitches, i.e., Class 4 and Class 5 Softswitches. Let’s understand what these are.

What is a Class 4 Switch?

Class 4 switches are used for handling long-distance or wholesale VoIP traffic. You can imagine it as a highway for large volumes of call traffic that efficiently optimizes geographically distant connections. The main perspective behind using Class 4 Softswitches is cost-effective routing and traffic management. Key features offered by Class 4 softswitches are:

• Concurrent calls
• Protocol support & conversion
• Intelligent call routing
• Secured firewall
• Easy to use and simple interface

What is a Class 5 Switch?

Class 5 Switches are focused on providing service to end users or subscribers, such as residential clients. Class 5 softswitches are mostly used by ISPs or telecom companies to manage local calls. That being so, class 5 softswitches are used to offer smaller volumes of call traffic and to offer personalized services to clients. 

• Auto-attendant
• Call forwarding
• Call transfer
• Call waiting
• Caller ID
• Conference calling
• Virtual phone numbers

Class 4 Softswitch vs Class 5 Softswitch

Both classes of softswitches play a significant role in VoIP networks. The difference between a class 4 and a class 5 switch can be marked based on 2 key areas:

• Focus 

Class 4 softswitches are designed for wholesale carriers and service providers to handle long-distance traffic. On the other hand, Class 5 softswitches cater to end users.

• Volume Handling

Class 4 softswitches specialize in handling high call volumes across geographically diverse locations, also called interexchange VoIP traffic. In contrast, Class 5 Softswitches handle smaller yet diverse call traffic within a specific geographic area. 

To understand the difference between the two softswitches in a better way, I have created this comparison table. Take a look:

Benefits of Using Softswitches

Businesses and organizations around the world have observed several benefits of using softswitches. 

1. Scaling Up and Down is Easy

Softswitches offer incredible scalability. Because softswitches run on software, adding more calls doesn’t require any type of physical expansion. Softswitches facilitate scaling up and down virtually. 

If you wonder who can benefit from the scalability of softswitches, then startups, call centers, cloud providers, etc., are a few businesses. The scalability of softswitches can help such businesses adapt to changing business needs. 

2. High Reduction in Cost

When compared to traditional circuit-based switches, softswitches come out to be quite pocket-friendly. Since there is no additional hardware to be purchased for the working of softswitches, companies save a lot of money. Even when there’s a need to upgrade, softswitches allow so this without any heavy investment. 

3. Automate Accurate Billing

Traditional switches relied on manual billing, which is prone to errors. However, modern-day softswitches have automated the whole process as they come with built-in billing solutions. Softswitches are capable of tracking call details in real-time with laser precision and applying pre-configured billing rules to calculate tariffs and generate accurate invoices. 

Beyond billing accuracy, softswitches offer a lot of convenience and add efficiency to the overall communication process. Both businesses enjoy faster and transparent invoicing, which ultimately builds the trust of the customers. Mobile operators leverage softswitches to ensure accurate billing of prepaid, postpaid, data usage, and roaming charges. 

4. High Versatility

It won’t be an overstatement if I say that a softswitch is a universe of possibilities. Don’t believe it? Let me explain. 

The first reason for the above statement is that Softswitches handle Multiple Services under One Roof. From voice calling, video conferencing, and instant messaging to unified communications platforms, Softswitches can handle them all. 

Secondly, softswitches can seamlessly adapt to any technology, be it VoIP, traditional PSTN, or a combination of both. This adaptiveness of softswitches makes them a universal element of the telecommunication world. 

Last but not least, modern-day softswitches come like a tailor-made suit for your communication requirements. They can be customized with a wide range of features to fit your business’s unique needs. 

5. More Reliable

Softswitches have in-built real-time monitoring capabilities, using which they actively monitor QoS. In instances when there is a sudden increase in call load, the softswitch can automatically make real-time adjustments to its configurations. This is done to ensure that communication happens without any glitches. 

VoIP Softswitch Use Cases

Softswitches are deployed extensively across various sectors and industries. Here are real-life use cases for the same:

1. OTT VoIP Services

OTT service providers offering VoIP applications deploy softswitches for efficient call traffic management. A popular example is Skype, one of the most pioneering platforms offering OTT VOIP services, which leverages softswitches to enable global connectivity for calls made over the internet using the Skype app. Another prominent example is WhatsApp, owned by Meta, which uses softswitches to facilitate voice calling to its users. 

2. Mobile and Wireless Networks

MNOs, i.e., Mobile Network Operators, utilize softswitches to achieve a variety of goals as mentioned below:

• Softswitches ensure seamless call routing between different carrier networks. Softswitches help in optimizing the flow of calls and data across different networks by selecting the best routes. 
• Furthermore, Softswitches also contribute to roaming services by ensuring a seamless transition from the home network to other networks when a mobile phone user travels outside their home area network. 
• Another area where softswitches are useful is the signaling and protocol conversion. Softswitches ensure that signals between different carriers and networks are interpreted correctly. They do so by handling the translation of signals from one format to another, called protocol conversion. 

3. Emergency Services

In the government and public sector, softswitches are essentially used for emergency communication systems. For critical situations that require law enforcement, fire departments, and medical assistance, softswitches facilitate emergency call routing for swift and rapid response or action. 

4. Telecom Service Providers

Though this has been covered already, let’s take a quick look again. Softswitches are an integral part of the working of telecom service providers. While wholesale carriers managing large call traffic leverage Class 4 softswitches, ISPs make use of Class 5 softswitches to manage their local call traffic. 

Tips for Choosing the Right Softswitch

Now that you have gained sufficient knowledge about softswitches, it would be a good idea to choose the right softswitch for your needs. I have gathered some essential tips to guide you through the process:

First, Assess your Business Needs

Start with this in mind – your business is unique and has unique requirements. Therefore, when choosing the right softswitch, consider these 5 aspects to identify what your business needs. 

1. Determine the call volume that you anticipate handling. Identify average and peak call volumes. 
2. Figure out the specific features your business needs. It can be call routing, billing, IVR, call conferencing, or integration with other tools. 
3. Whether your existing infrastructure is VoIP, PSTN, or mobile network, it is important to check the compatibility of the softswitch with your network. 
4. Your communication needs are bound to change, so check how easily the softswitch can scale with your changing needs. 

Secondly, Decide Upon the Deployment Model

With the rising popularity of cloud-hosted telecom solutions, many new entrants are curious about where to host their VoIP applications for scalability, reliability, and ease of management.

One Reddit user asked a thoughtful question that captures this sentiment:

What cloud platform is preferred to deploy Telecom or VOIP Application?

Hello! This has been a curious question in my mind for a long time. What cloud platform do you prefer to deploy your VOIP application and why? I know there are multiple applications and platforms, but it would be tremendous help for the newcomer who wants to dive into the VOIP career, so that will help your expert opinion here. Thank you

Source: Reddit

This question reflects a broader concern among professionals entering the VoIP space. 

• Network latency in your target region
• Cost efficiency
• Uptime and redundancy
• Support for SIP protocols and firewall/NAT configurations

Here is a pro tip for you: Go with a platform that allows autoscaling, real-time monitoring, and seamless failover.

Thirdly, Evaluate Providers and Products

You need to make a checklist of the following points to shortlist the best providers and solutions. 

• Reputation of the vendor
• Features and Functionalities 
• Robust Security Measures
• Support Services 
• Pricing of the Solution 

Fourthly, Conduct Thorough Testing

Almost all the vendors out there offer free trials to interested customers. So why not take advantage of this opportunity, right? This will enable you to test the softswitch in your work environment and check its suitability. 

During the trial period, do these 3 things:

• Check the call quality under different conditions 
• Use all the features that you wish to use
• Test the integration of the softswitch with existing tools

Fifthly, Make Additional Considerations

Though we have covered most of the key areas to make a good choice, I would like to suggest 3 more aspects that you should consider. 

Compliance: Make sure the softswitch solution meets the industry-specific regulations 

Future Proofing: Look for a softswitch that can adapt to emerging trends and technologies. 

Ease of Use: Don’t forget to consider the interface of the softswitch because ease-of-use matters. 

Last, Seek Expert Advice

If you still have questions or doubts, it is best to get in touch with an industry expert. They can provide answers to your complex requirements and guide you through the selection process. 

Get Started with REVE – Class 4 and Class 5 Softswitch

REVE Session Border Controller – Class 4 Softswitch

REVE Session Border Controller (SBC) is a powerful and scalable platform for communication service providers. The Class 4 Softswitch Platform has a distributed architecture for network availability & resiliency to prevent any threat. Powered with a real-time billing platform and intelligent routing, REVE SBC makes IP wholesale business more scalable.

• Integrated intelligent firewall for security and reliability
• Distributed architecture & SIP interoperability
• 1+1 hot redundancy
• Scalable
• Real-time billing

iTel Switch – Class 5 Softswitch

iTel Switch is a single Softswitch platform for global Retail, Wholesale, Calling Card, and Call Shop businesses. Being a customizable and scalable VoIP Softswitch with integrated billing, it serves as an ideal platform for all VoIP service providers who want to provide VoIP calling services. Multilevel reseller support, easy end-user interface, integrated billing, intelligent routing, and class 4 & 5 Softswitch features are some of the benefits of iTel Switch.

• Easy rate plan management  
• Flexible & advanced routing
• Live call monitoring  
• Multilayer security
• Detailed analysis & reporting  
• SMS and email-based alert system
• Seamless client management  
• Multiple DID management

Conclusion

In the past telecom industry relied heavily on circuit-based switches to establish connections between callers and deliver uninterrupted services. With the advent of software-based technologies, softswitches took over and emerged as a more scalable and flexible alternative to their hardware-based counterparts. 

If you, too, are a telecom provider, a communication service provider, or a VoIP service provider, we encourage you to take a free demo of our Class 4 switch and Class 5 switch. Our industry experts are always available to answer any type of queries.

Frequently Asked Questions

What is the importance of a softswitch in telecom?

A softswitch acts as a central controller for routing and managing VoIP calls. It makes communication systems more scalable, cost-efficient, and easier to maintain by replacing traditional hardware-based switches with software. 

Are softswitches the same as PBX systems?

No, a softswitch is typically meant to handle carrier-level traffic, while a PBX system is designed for internal business phone systems. However, a Class 5 softswitch can include PBX-like features such as call forwarding, voicemail, and IVR.

What hardware is needed to deploy a softswitch?

Modern switches are software-based, so their hardware requirements depend on scale. Typically, a reliable server, sufficient RAM storage, redundant power and network connections, and a Session border controller are required if connecting to PSTN. However, with cloud deployment, hardware needs are minimal on the user’s end.

Can a softswitch be hosted on the cloud?

Yes, softswitches are being increasingly hosted on the cloud owing to the various benefits, including eliminating the need for physical infrastructure, offering rapid deployment, lower maintenance, and allowing businesses to scale easily. The trend is increasingly popular among small businesses like startups and service providers offering VoIP services. 

What kind of technical expertise is required to manage a softswitch?

Basic technical knowledge might be helpful during the initial setup and configuration of the softswitch. However, today, modern softswitches come with user-friendly dashboards, dedicated onboarding assistance, and managed services. This means non-technical users can also easily operate the softswitch system. 

The post What is a Softswitch? Working, Types, Benefits & Use Cases appeared first on Revesoft Blog.

What is a Softswitch in VoIP?

A softswitch is also called a Software Switch and is considered a central component in VoIP networks. It is responsible for routing voice calls, video calls, and messaging over IP networks, rather than traditional telephone lines. Conventional hardware-based telecom switches require physical circuits; however, modern softswitches are entirely software-based and run on standard servers. 

You can understand the role of a softswitch with this example. Imagine yourself making a call to a friend in another country using an internet-based calling app. Now, in this case, your call isn’t moving through traditional telephone lines; rather, it’s routed over the internet using a softswitch that determines the best route or path for your voice call data to reach its destination. 

Typically, softswitches are of two types, class 4 and class 5. Both these switches, though, manage VoIP traffic; they have disparate roles within a telecom network and thus serve very different purposes. 

Class 4 Softswitch

This type of softswitch is meant for routing long-distance VoIP calls or international calls between different carriers. Some of the key functionalities of class 4 softswitches include protocol support and codec translation, least-cost routing, ensure QoS monitoring, and provide CDRs, ie, call detail records for billing. 

Class 4 softswitches are ideal for telecom operators, wholesale VoIP providers, and international call aggregators. 

Class 5 Softswtich

This type of softswitch is meant to operate at the user level, i.e., managing individual subscribers and businesses. Class 5 softswitches are ideal for hosted VoIP providers, ITSPs, enterprises managing internal phone systems, and UCaaS providers. 

Some of the key functionalities of these switches include managing user registration and authentication, handling local call switching, offering user features like voicemail, IVR, call forwarding, call hold, call transfer, DND, and more. 

Key Components of a Softswitch

A softswitch is made up of multiple functional modules or components, each of which plays a specific role. Let’s explore each one of them in detail:

• Call Agent 

Also called Call Control Server, it is the brain of the softswitch that manages all the signaling functions involved in a VoIP call. This includes: 

Call initiation: The dialed number is accepted, and the request is verified

Session control: The ongoing call session is managed

Call termination: The session is properly terminated, and resources are released

For example, you dialed a phone number from your softphone. The control server checks if your account is active, ensures that the dialed phone number is reachable, and initiates the call session. While the call happens, the control server remains active during the whole session to monitor and terminate the call once it is done. 

• SIP Proxy/ Registrar Server

This component is responsible for user registration, i.e., registering the VoIP device with the network, and location tracking, i.e., storing the location where the call is to be delivered. 

• Media Gateway Controller 

The telecommunication world is hybrid. While IP calling is increasingly growing, there are still many users who rely on traditional landlines and mobile phones that operate over PSTN or over the mobile voice networks. VoIP cannot communicate directly with PSTN as they speak different languages. So when this is the case, i.e., communication between the old PSTNs and the new VoIP, it is the media gateways and the media gateway controllers that do the job of the translation. 

The Media Gateway Controller is the component that bridges VoIP with traditional telephony networks or PSTN. Suppose you make a VoIP call from your country to someone in the U.S. The call initiates and reaches the softswitch, which detects that the destination is not another VoIP user, but a PSTN connection. The media gateway controller identifies the correct media gateway for the destination and instructs it to convert into a PSTN-compatible voice signal. The result is – The phone on the destination rings like any normal call, even though it originated from the internet. 

• Routing Engine 

As the term implies, this component is responsible for deciding the route for each call. Based on various parameters like the destination phone number, availability of the network, time of day, cost of routes, and quality metrics, the routing engine makes an intelligent decision about how every call will reach its destination most efficiently and cost-effectively, while maintaining QoS. 

• Billing and Monitoring Module 

This module works towards ensuring the accurate tracking, billing, and reporting of each call. It does so by collecting CDRs, i.e., Call Detail Records, which typically include origin and destination of the call, start and end time, total duration, rate per minute, and termination status. 

We just learnt the various components of a softswitch, and it will be correct to say that a softswitch is much more than just a call routing engine, right? 

How does a Softswitch Work?

Now let’s move down to the step-by-step process of how all these modules or components work in cohesion. 

The Call Initiates 

As soon as a user dials a phone number using a VoIP app, a desk phone, or a SIP trunk, the call gets started. With this, the device sends an SIP INVITE to the softswitch. Think of it like when you open your VoIP calling app and dial your friend’s phone number in a foreign country. 

Authentication and Signaling Happen 

The SIP proxy performs user authentication to ensure that the account is valid and forwards the signaling to the call control server.   This is like the system checks your user credentials and makes sure that you’re allowed to make international calls. 

Routing Decision is Made 

After confirmation, the routing part follows. Here, the routing engine considers various call parameters such as time of the day, destination, and available routes. Then it determines the best way to connect the call. This is like choosing a low-cost carrier in the destination country to minimize your bill. 

Media Path is Established 

The softswitch instructs the media gateway to establish the media path, thus the voice data starts flowing between the users

Billing and Session Monitoring 

The softswitch activates its billing and monitoring components that track call duration, connection details, and generate real-time billing information

Call Gets Terminated 

The call finally reaches its destination, which could be a VoIP number, a mobile phone, or a landline. It gets terminated after the conversation is over. 

Softswitch Deployment Models

There are different ways in which a softswitch can be deployed depending upon your specific business requirements in terms of size, technical capabilities, and scalability. Let’s explore the 3 major deployment options: 

On-Premise Softswitches

In this case, softswitches are installed locally on the physical or virtual servers of the business or the operator. This also means that all the components of the softswitch, including call control, routing, billing, and media processing, are deployed in-house. 

This type of deployment offers complete control over infrastructure; however, there’s also a high upfront cost associated with it. 

Cloud-Based Softswitches

In this type of deployment, softswitches are hosted and maintained by third-party providers. All operations happen in the cloud, and users access them via a web portal. This deployment model is an ideal choice for service providers and telecom resellers. 

The benefits of cloud-based softswitches include quick setup, no hardware purchase, automatic updates, and security patches. At the same time, challenges associated are lesser control over infrastructure, limited customization, and dependency on the vendor for uptime and policies. 

Open Source Softswitches

While this is not the best option to go with, some businesses still may choose open-source tools. While they come with benefits like zero licensing cost, high flexibility, and a large developer community, challenges like the requirement of advanced technical skills for setup and maintenance, lack of enterprise-grade features, and limited support may not be suitable for businesses seeking reliability.

Commercial Softswitches

These softswitches come with enterprise-ready features such as multi-tenancy, integration options, dedicated support, and documentation. Though licensing fees can be high, these are an excellent choice for businesses seeking stability, scalability, and fast time-to-market. 

Here are some quick questions about softswitch deployment that can help you choose the right model:

• Need full control and privacy? 

Go on-premise.

• Want to move fast without infrastructure hassle? 

Pick a cloud-based softswitch.

• Do you have a development team and want flexibility? 

Try an open-source softswitch.

• Need stability, support, and features out of the box? 

Choose a commercial softswitch vendor.

How to Set Up a VoIP Softswitch?

If you are planning to launch a VoIP service, then this is your foundational step. You need to ensure both infrastructure readiness and software deployment to set up your VoIP softswitch. Here’s how you can do it step-by-step: 

Clarify Your Business Goals 

Before you dig deep into the technical aspects of softswitches, make sure you have your business model defined clearly. Determine whether you are offering retail VoIP services or handling carrier-to-carrier traffic, or a hybrid model. With this, you will be able to figure out the type of softswitch you need. 

Select a Softswitch Vendor 

Never run behind low-cost services; rather, choose a reliable softswitch provider with having good reputation in the market. Make sure the vendor fulfills your specific business needs. 

Choose Hosting Environment 

Primarily, you have two options to host the softswitch. One is a dedicated on-premise server where you will have full control. The other is a cloud VPS or data center, which is good for scalability and remote access. 

Install the Softswitch Software 

To install the softswitch software, you need to check with your vendor. They might provide a hosted platform (SaaS) or give you an installation package to deploy manually on your server. 

Secure Your Softswitch 

Before your softswitch goes live, make sure to configure firewalls, enable IP whitelisting, and install SSL certificates. 

How to Configure a Softswitch?

Once the setup procedure is done, you can configure your VoIP softswitch to make sure it works in alignment with your network and business needs. 

1. Create SIP accounts and set up credentials for end users (for Class 5 SOftswitch) and Carriers (for Class 4 Softswitches). SIP accounts usually include SIP ID or username, password, caller ID, and allowed IPs. 
2. The next step is to configure routing rules. For Class 4 softswitch, configure LCR and Time-based routing or failover routes. For class 5 softswitch, define extension-to-extension calling, local/international dialing patterns, and dial plans per user/group. 
3. The next step is to integrate VoIP termination providers by adding SIP trunk providers for call termination. 
4. Then set up supported codecs (e.g., G.711, G.729, Opus) and transcoding based on your carrier’s requirements and call quality goals.
5. Configure IVR menus, Voicemail boxes, and Call Features such as call forwarding, do not disturb, and conferencing for the Class 5 softswitch.
6. If your softswitch includes a billing engine, create rate tables for each destination or provider, set up prepaid/postpaid billing models, and enable balance notifications or call cut-off rules
7. Then comes monitoring and reporting configuration. Here, enable real-time CDRs, alerts for failed calls, fraud detection, or system downtime, etc. 
8. Before launch, perform end-to-end testing (test calls, audio quality, route failover), check CDR logs and billing behavior, and monitor resource usage (CPU, memory, bandwidth). 

Softswitch Use Cases

Software switches find their usefulness in multiple telecom environments to enable cost-effective, flexible, and scalable voice services. Let’s have a look: 

VoIP Service Providers

Service providers offering VoIP services leverage softswitches to manage and route a high volume of voice traffic over the Internet to different global destinations. 

Telecom Carriers

Carriers often exchange voice traffic with each other globally. By deploying class 4 softswitches, they can manage interconnect traffic, ensuring load balancing and that their calls are routed optimally and billed accurately.

Internet Service Providers

ISPs and MSPs often bundle VoIP services with broadband, making use of softswitches, expanding their service portfolio, and reducing churn by offering complete communication bundles.

Conclusion

When a VoIP call happens successfully, we know that it’s a softswitch that makes a major part of making it possible. For telecom carriers and VoIP providers, it is important to understand the working of a softswitch and choose the one that best fits their requirements.

Explore REVE Softswitch Solutions

If you have questions in mind and are still in the process of choosing the right softswitch, we at REVE can help you make the right decision. Our experts, with years of consultation experience, can guide you through your options, assess your technical and business requirements, and recommend the ideal solution for your specific use case. We also offer free demos and trial access so you can experience our Class 4 and Class 5 Softswitch platforms firsthand. Talk to an Expert to get started today.

Frequently Asked Questions

How are Class 4 and Class 5 softswitch different? 

Class 4 softswitches are designed for routing long-distance, high-volume VoIP traffic that typically flows between carriers or providers. On the other hand, class 5 softswitches are meant to serve end users, handling local calls and offering advanced calling features like IVR, voicemail, call forwarding, etc. 

Is it possible for a softswitch to work without SIP? 

SIP is the modern standard for VoIP signaling and is a widely supported protocol in VoIP ecosystems today. However, softswitches can work with older protocols like H.323, SS7, etc

Do softswitches support video calls? 

Yes, modern softswitches support video calls, especially if they are built on SIP with support for video codecs. 

Can softswitches connect calls between VoIP and PSTN Networks? 

Yes, softswitches connect VoIP to PSTN via media gateways that handle signaling translation and media conversion. This enables users on VoIP apps to call traditional landlines, or vice versa.  

What business sizes can use softswitches? 

Softswitches are suitable for various businesses like startups, SMBs looking for hosted PBX solutions, enterprises managing multi-site communications, and carriers and wholesalers needing routing solutions. 

How do softswitches ensure call quality and reliability? 

Softswitches come with various features such as Least-Cost and Quality-Based routing, redundancy and failover, call quality monitoring, etc., that enhance the quality and reliability of the calls. 

The post How Does a Softswitch Work: Key Components & Use Cases appeared first on Revesoft Blog.

What is a Softswitch?

A softswitch is software used in the telecommunication network for launching, maintaining, routing, and terminating sessions in Voice over IP (VoIP) networks. Internet-based telephony and a growing number of traditional telecommunication networks use this software switch to manage the connection of phone calls.

Call switching in the telecommunication industry is a long-term practice to interface the caller to the intended recipient. It was a manual process earlier when the phone administrators shifted the phone line physically, starting with one circuit and then onto the next, to interface the call between a caller and recipient. In the present scenario, if you notice a typical VoIP architecture, the manual call routing has moved on to an automated process with the help of a softswitch.

This software consequently switches the phone lines, and it is a mix of software and switchboard. It has the programmed logic to play out this telephone line exchange. 

How does VoIP Softswitch Work?

A softswitch functions as the brain of a VoIP network. How? Here’s the breakdown of the inner workings of a VoIP Softswitch:

• Initiation of the Call

When a number is dialed from a VoIP phone, the phone sends a SIP message to the Softswitch that establishes the call setup process.  

• Routing of the Call

The softswitch receives the SIP message and analyzes its internal routing table. Based on the present information, like destination, quality of service, cost, and network conditions, Softswitch decides an optimal path for the call. 

• Call Connection is Established

When the call is within the same network, the softswitch directly connects the users on both ends. If in case, the call is to be sent to an external destination, then the softswitch may need to connect with other softswitches to reach the destination. 

• Media Processing Takes Place

During the call, the softswitch manages the packetization process. It converts voice signals into IP packets for transmission over the network. The softswitch also performs Packet Switching, i.e., directs the voice packets through the network, ensuring they reach the destination in the correct order and within an acceptable timeframe.

• Termination of the Call

When one of the end users hangs up, the Softswitch sends the message to terminate the call. After that, it releases the resources that were used for the call and starts preparing for the next call. 

Class 4 and Class 5 switches are the most widely used switches for routing calls through different networks. Some common types of routing are least-cost routing, lossless routing, time-based routing, etc.

What is a Class 5 Softswitch?

Class 5 Softswitch is a strong platform with lots of interesting modern features. Through this software, a retail VoIP service provider can provide extremely rich quality IP services to enterprise and residential office customers with IP-enabled devices like landline IP phones and adaptors!

Let’s consider a scenario – If an end user wants to make a call from Singapore to a Japan PSTN number, what’s the role of Class 5 Softswitch? To begin with, the call controlled by a retail VoIP solution provider will be transmitted to a wholesale VoIP provider via a Class 5 Switch. What happens after it reaches the wholesale VoIP provider is explained in the Class 4 Softswitch section.

Characteristics Of Class 5 Softswitch

Class 5 Softswitch characteristics include:

• Call Authentication

It involves confirming the identity of the calling party to ensure that only authorized users can make the calls through the Softswitch. 

• Billing and Routing

While billing is all about tracking the usage of services for each user to generate bills, Routing involves determining the most optimal path for a call to reach its intended destination. 

• Interactive Voice Response

Interactive Voice Response or IVR refers to the technology that enables automated customer service, i.e. computer can interact with humans through voice and DTMF tones input via a keypad. 

• Callback

The callback feature allows users to request a callback from the system. 

• Analog-to-Digital Conversion

In this process, analog signals or voice signals are converted into a digital format so that data can be transmitted over digital networks. 

• Support for Codec & Media Transcoding

Class 5 supports various audio codecs for compression and decompression of audio data.  The usage of different codecs has different effects on the quality of the call and bandwidth usage. When 2 communicating parties use different codecs, media transcoding ensures compatibility and seamless communication. 

• Social Media Usability

Using this feature, integration with social media platforms can be done. This enables users to call or interact with the softswitch using social media channels. 

• Call Transfer

This feature enables a user to transfer an ongoing or active call to another party, such as a different department or team. 

• Call Holding

The call holding feature allows the user to temporarily put the call on hold, playing some music or greetings, while the user attends to another matter. 

• Call Forking

Using this feature, a call can be simultaneously sent to multiple destinations, for instance, when a call is to be answered by multiple parties simultaneously. 

What is a Class 4 Softswitch?

Class 4 Softswitch is mainly used for routing IP-IP calls to long-distance international locations using an IP network. Now, in our previous example, where an end-user wants to initiate a call from Singapore to a Japanese PSTN number, the Class 4 Switch will route the call to a Japanese PSTN number only when a wholesale VoIP service provider receives the transfer order from a Class 5 Switch.

In addition, Class 4 Softswitch, which has fewer features than Class 5, enables cost-efficient scaling of voice services while offering a reliable presence between interexchange carriers.

Characteristics Of Class 4 Softswitch

The most important characteristics of the Class 4 solution are:

• Protocol Support and Conversion

To ensure efficient communication between different carriers, class 4 softswitches support various protocols. They also perform conversions to facilitate interoperability. 

• Transcoding

This process converts media streams from one codec to another to ensure seamless communication between carriers. 

• Calls Per Second Rate

CPS or Calls Per Second Rate is the number of calls a Softswitch can handle per second. It defines the capacity and performance of the Softswitch. 

• Average Time of One Call Routing

The average time taken by the softswitch to route a call from source to destination is called the Average Time of One Call Out. This helps in assessing the efficiency of call routing processes. 

• Number of Concurrent Calls

Another crucial capacity parameter, the number of concurrent calls, refers to the maximum number of calls a softswitch can handle simultaneously. 

• Flexible UI (User Interface)

A flexible UI sets up a user-friendly environment for administrators to configure and manage the Class 4 softswitch. 

• Intelligent Call Routing

This feature dynamically determines the most optimal route for each call. 

• Billing Interface Including CDR

The billing interface provides features for tracking and generating invoices. CDR refers to the detailed logs containing information about each call. 

• Secured Firewall

The firewall acts as a protective barrier that secures the Softswitch from potential security threats and unauthorized access. 

• Filtered Third-party Routing Engine

A third-party routing engine integrated with class 4 Softswitch filters and optimizes the routing of calls, thus boosting the efficiency of the call transit. 

Class 4 vs Class 5 Softswitch – Key Differences You Should Know

Undoubtedly, both Class 4 & 5  Switches are robust platforms that play an important role in a VoIP infrastructure, but you need to understand some major differences between the two. Here, I have differentiated class 4 vs class 5 Softswitch based on purpose, features, business usage, capacity, and route area.

Purpose

Class 5 Softswitch is responsible for transferring calls to Class 4 Softswitch after receiving the calls. It is primarily involved in handling calls within small areas. For long-distance routing through retail VoIP service providers, Class 4 Softswitch comes into action. After receiving calls from Class 5 Switch, a wholesale VoIP service provider routes the call to the long-distance destination with the help of a Class 4 platform.

Features Count

Class 5 Softswitch services include basic dial-tone, calling features, and additional digital and data services to subscribers using the local loop, but a Class 4 Softswitch is just a simplified solution. The main function of the Class 4 solution is the routing of large volumes of long-distance VoIP calls, paralleling other Class 4 telephone switches.

Types of Service

Class 5 Softswitch is more of a retail solution, whereas Class 4  is a wholesale solution.  This means a Class 4 switch is a central office telephone exchange that is used to interconnect local exchange carrier offices for long-distance communications in the public switched telephone network.

In contrast, a Class 5  Softswitch is a telephone switch or telephone exchange in the public switched telephone network, located at the local telephone company’s central office, directly serving end-users.

Business Usage

Class 5 Softswitches are intended to work with both VoIP service providers as well as end-users. This type of switch platform is for local & long-distance telephony services. So, it possesses additional service features for end-users & corporate clients such as IP PBX features, call center services, calling card platform, types of authorization, QoS, Business Groups, etc.

On the other hand, the Class 4 platform intends to serve wholesale VoIP solution providers, PSTN, Telco Operators, Carriers, etc.

Concurrent Capacity

Class 4 Softswitch can transfer a large number of calls, but Class 5 Switch solution can handle a small number of calls, so it is also known as a retail softswitch.

Route Area

A Class 4 softswitch routes large volumes of usually long-distance VoIP calls throughout multiple IP networks. In contrast, a Class 5 route calls the correct IP address, SIP address, or DID number of an End user.

Let’s have a look at the Class 4 vs Class 5 softswitch comparison in tabular form:

Benefits of Using Softswitch

Cost Effectiveness

In terms of cost, softswitches offer savings from various aspects. First, there is no need for expensive dedicated hardware, thus saving money on maintenance and space. Second, due to efficient routing and VoIP use, soft switches significantly reduce the long-distance and international call charges. Furthermore, when it comes to scaling a business, the addition and removal of lines are easy, and there is no need for additional hardware investment. 

Flexibility and Functionality

The flexibility and functionality offered by softswitches are depicted by 3 main aspects. Softswitches are not just limited to basic call routing. Rather, they support a wide range of advanced features such as voicemail, conferencing, and a lot more. Moreover, softswitches perform protocol interoperability, i.e., connect different types of networks and devices seamlessly regardless of the underlying protocols. Last but not least, softswitches allow customization, i.e., adapt to specific needs and services. 

Network Management and Efficiency

Softswitches play a pivotal role in the management of networks through real-time traffic monitoring. These switches provide detailed insights into call patterns and network performance. Moreover, the advanced security features and fraud prevention tools offered by softswitches improve the overall security of the network. When it comes to efficiency, softswitches are easier to update, and bug fixes can also be done effortlessly compared to hardware-based switches. 

How do Class 4 and Class 5 Softswitch work together?

In today’s modern VoIP networks, class 4 and class 5 softswitches represent two different entities that serve different functions, but they often work in collaboration to facilitate end-to-end voice communication. 

When a user initiates a call, the Class 5 Softswitch handles the local routing. If the call is to be routed to a distant location, then the Class 5 Softswitch hands over the call to a Class 4 Softswitch. As the Class 4 softswitch takes over, it leverages its advanced routing capabilities and identifies the most cost-effective route for the call to reach its international destination. 

iTel Softswitch – Hybrid Softswitch

iTel Switch is a single Softswitch platform for global Retail, Wholesale, Calling Card, and Call Shop businesses. Being a customizable and scalable VoIP Softswitch with integrated billing, it serves as an ideal platform for all VoIP service providers who want to provide VoIP calling services. Multilevel reseller support, easy end-user interface, integrated billing, intelligent routing, and class 4 & 5 Softswitch features are some of the benefits of iTel Switch. If you want a class 4/5 hybrid switch, iTel Softswitch will support your needs as it can handle high-volume traffic. So, if your SIP Softswitch has a higher capacity, it can handle peak-hour calls.

Ready to Choose the Right Softswitch?

A Real-World Question From Reddit

So I want to get a VOIP system set up, and i’m a little confused about the steps I’d need to take in order to accomplish this. I’m a software developer so a bit of a technical explanation would be helpful. From my understanding, the first step in setting up a VOIP system is purchasing a Softswitch that doubles as a IP-PBX system. After this,what are my next steps? Do most soft switches contain functionality that maps outgoing calls to the correct provider? And for incoming calls, how do I establish a phone number? Is there a fee? Or does the software that comes installed on the switch allow me to choose my number? Lastly, assuming that I have set this up, am I a VOIP provider? – Source: Reddit

According to Precedence Research, “The global VoIP market size is predicted to increase from USD 161.79 billion in 2025 to approximately USD 415.20 billion by 2034, expanding at a CAGR of 11.04% from 2025 to 2034”. The VoIP industry is passing through a revolutionary phase with new developments in the IP communications arena. Nowadays, many young entrepreneurs are getting into the VoIP business owing to the boom in this field.

The above question is a great example of the confusion many new entrants face when exploring VoIP infrastructure. A Class 5 Softswitch would typically serve as the IP-PBX system the user mentions, offering features like number assignment, voicemail, and user management. However, if you’re also routing calls between providers or managing multiple carrier relationships, a Class 4 Softswitch becomes essential.

Most commercial softswitch solutions, like those offered by REVE Systems, provide modules for SIP trunking, number provisioning, and LCR (Least Cost Routing). And yes, once your system is set up and you’re handling traffic for others, you are technically operating as a VoIP provider.

The communication business is growing rapidly with the increase in the subscriber base. VoIP Service providers are therefore trying their best to offer quality services by upgrading the existing VoIP infrastructure. Here’s what we suggest:

• Go for Class 4 Softswitch if you’re a carrier focusing on long-distance call routing, cost optimization, and high scalability. 

• Go for Class 5 if you’re serving end-users, i.e., residential or business customers, providing them with features like voicemail, IVR, call forwarding, and call recording
• Consider a hybrid platform if you need both Class 4 and Class 5 functionality 

At REVE Systems, we offer robust and scalable VoIP Softswitch solutions: Class 4 Softswitch and Class 5 iTel Softswitch. Our products are designed to help you run your wholesale and retail VoIP services with ease, offering best-in-class security, flexibility, and availability.

The global softswitch market size was USD 531 million was 2021, and the market is projected to touch USD 870 million by 2031, exhibiting a CAGR of 5.0% during the forecast period (Source). Looking at the statistics, it is evident that investing in innovative communication tools like the Class 4 switch and Class 5 switch is certainly a wise move. Our industry experts are always ready to assist you with any type of queries you may have. 

Frequently Asked Questions

What is the main difference between Class 4 and Class 5 softswitches?

Class 4 and Class 5 softswitches differ in terms of their functionality and target users. Class 4 softswitches route high-volume, long-distance calls between carriers. While Class 5 Softswitch is meant for end users to provide them with features like voicemail, call forwarding, and IVR

Can a VoIP provider use both Class 4 and Class 5?

Of course, several VoIP providers around the world use both types of softswitches as it helps them maintain end-to-end control of wholesale and retail operations. 

Which one is better – Class 4 or Class 5?

Well, the best software depends on your specific business needs. Class 5 is ideal for user-facing features and services, while Class 4 is better for handling high-volume call traffic and routing. 

What are some advanced calling features offered by Class 5 softswitches?

Some of the advanced calling features offered by Class 5 softswitches are voicemail, call forwarding, Interactive Voice Response (IVR), caller ID, call recording, conference calling, call hold, and transfer. 

Looking for VoIP SoftSwitch for Your Business?

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Features to Look for While Buying a Class 4 Softswitch

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The post Class 4 vs Class 5 Softswitch : VoIP Softswitch Comparison appeared first on Revesoft Blog.

What is a SIP Softswitch?

Since SIP is amongst the various protocols that come under VoIP, we can say that a SIP Softswitch is a type of VoIP Softswitch. It can be considered a bridge between VoIP and PSTN calls. It is just like an operator who is responsible for the transfer of calls to their intended destination. The SIP Softswitch works by staying informed about the call signals that pass through the software and making sure that signals reach their destination. Besides connecting voice calls, a SIP Switch also supports the transfer of multimedia messages.

How does a SIP Softswitch Work?

A SIP Softswitch works as a central point of control in a VoIP network, managing all incoming and outgoing voice and multimedia traffic. The softswitch is designed to receive, process, and route calls between endpoints, such as IP phones, softphones, and other endpoints.

• When a user initiates a call, the SIP switch checks the user’s credentials looks up the destination number, and determines the best route for the call.
• After that, a connection between both the parties i.e. the caller and the receiver is established by the switch. It also manages the session till the call is over.
• The SIP switch is also responsible for other call-related functions, such as call transfer, conferencing, and call forwarding.

Besides the above-mentioned functionalities, SIP Softswitches can also offer other services like IVR, voicemail, and billing. This makes these switches an all-in-one communications platform. 

Important Features of SIP Softswitch

A SIP Softwitch usually offers multiple features and each softswitch solution offers a different set of features depending upon the vendor. However, some top features of a SIP softswitch are as follows:

• Call Routing

Making use of a pre-defined set of protocols or rules, SIP switches can route calls from one endpoint to the other. These switches are also capable of performing basic call-routing functions such as forwarding, transferring, and conference bridging.

• Protocol Conversion

These switches are capable of translating between different signaling protocols, such as SIP, H.323, and MGCP. This is useful to facilitate interoperability between different networks and devices.

• Call Management

Various advanced call management features such as call monitoring, call recording, call blocking, and call queueing are offered by these switches.

• Billing and Accounting

It can perform tracking and billing of the usage of services. Moreover, it can generate invoices for customers according to the services used by them. It can also provide real-time reporting of call activity and usage.

• Security

It can implement security measures such as encryption, authentication, and access control to protect against fraud, hacking, and other security threats.

• Scalability

It can be easily scaled up or down to meet changing traffic demands. It can handle a large number of concurrent calls and can be clustered for high availability and redundancy.

• Integration with Other Systems

It can integrate with other systems such as customer relationship management (CRM), billing, and provisioning systems to provide a seamless end-to-end solution.

Overall, the features of a SIP softswitch are designed to provide a flexible, reliable, and efficient platform for delivering voice and multimedia services over IP networks.

Benefits of using a SIP softswitch

There are several benefits of using a Session Initiation Protocol (SIP) softswitch for managing voice and multimedia communications over IP networks. Here are the top three benefits:

• Cost Effective

When compared to conventional telephone systems, SIP softswitches prove to be quite cost-friendly. As there is no need to buy expensive hardware, the initial costs get significantly reduced. Also, the use of IP networks for communication makes SIP switches a pocket-friendly option than those traditional telephone lines. 

• Flexibility and Scalability

In terms of scalability and flexibility, these switches offer great value. Businesses can easily add or remove users and services whenever there’s a need. Such flexibility helps businesses in surviving and adapt to dynamic communication needs without spending any extra amount of money.  

• Advanced Features

The advanced features such as call routing, billing, security, call management, and protocol conversion available in SIP softswitches are hardly found in conventional telephone systems. The advantages offered by these features include delivering high-class and reliable voice and multimedia services. 

Some other benefits which are quite significant for businesses include improvement in communication capabilities, increased flexibility, and reduction in costs. 

Importance of Choosing the Best SIP Softswitch Provider

The Softswitch is the backbone of the VoIP network. From performing functions like accurate call routing and user authentication to secure data transmission, it performs several critical tasks. Opting for a provider whose services are reliable can positively impact a business’s communication processes. Also, cost saving is a key benefit that a business can gain as a result of choosing a reliable service provider. However, selecting the wrong provider whose services are not-trustworthy can affect a business badly. 

How to Choose the Best SIP Softswitch Provider?

A Softswitch greatly defines the success or failure of a business, so when it comes to selecting one of best softswitch vendors, it is important to evaluate the features of the switch offered by the provider and ensure that the solution can be used for the long term. Let’s take a look:

• Determine your Business Needs

Before you start your search, define your business requirements, including the number of users, features needed, quality of service, budget, technical support, and security requirements.

• Research Potential Softswitch Providers

Conduct a search online for potential SIP switch providers. You can use search engines to find provider websites, industry directories, or reviews and comparison sites. Read reviews and testimonials from other businesses that have used the provider’s softswitch. You can find reviews on the provider’s website, social media pages, or industry forums. 

Ask the provider for references and contact them to learn more about their experience. You can ask about the quality of service, support, and any issues they have experienced.

• Key factors to consider when selecting a SIP Softswitch Vendor

          1. Reliability and Uptime

• Have you checked the SLA i.e. Service Level Agreement offered by your provider? Go through it to get an idea about their liabilities. 
• Don’t forget to check the uptime statistics of the provider to get an idea about their track record.
• Also, analyze the provider’s data centers and other infrastructure components. Find out what all equipment and measures they have to provide reliable services.

          2. Scalability

• How many concurrent calls can be handled by the SIP softswitch? Can they guarantee seamless call routing when traffic is at its peak? 
• How is the solution going to handle your growing user base? Will it affect call quality and reliability?
• What mechanisms are being deployed to avoid downtime when there is a network failure or technical fault?

          3. Flexibility:

• Ask whether the solution can integrate with your existing applications and systems. This includes your existing business phone system and other communication apps. 
• Does the vendor offer custom-built features and support facilities? You can also ask for custom price packages. 
• Look into the type of features supported by the SIP softswitch. Check for call recording, IVR, conference calling, etc.

These points if checked in advance before you make any commitment can save you from a lot of surprises later. You can request a demo or trial of the provider’s softswitch to evaluate its scalability, flexibility, and ease of use in meeting your business communication needs.

• Timely Upgradation and Maintenance

The best part of opting for a hosted softswitch is that the regular updates and upgrades, which are crucial to making the system adaptable to the current market trends, are provided by the service providers and are usually free of cost. However, if not free, you can go with the paid ones by checking their usefulness.

• Check Set Up Time

Once you have finalized the softswitch, obviously you want to get started quickly. For this, it is important that the setup procedure of the softswitch is easy and fast. By availing a free demo from the service provider, you can check out the time to set up and the user-friendliness of the softswitch portal. Make sure it is easy to operate and manage for seamless business operations.

• Check Support Contract

Since the switch is software-based, you will need support from the service provider’s technical team at different stages. This can be in the form of software updates or data backup services or it can simply be some customization in the software to meet business needs. Having support from a technical team is quite useful for all such activities. Therefore, check the support services to ensure that your queries are addressed immediately. It is best if it is free of cost and available 24/7.

• Check Technical Specifications

Can you afford to buy a softswitch that is using obsolete technology? Technical specifications such as OS platform, programming language, reporting tools, supported browsers, database, etc., must be checked to ensure that the system uses the latest technology.

By considering these factors and determining your specific business needs, you can choose the best SIP softswitch provider for your business. It’s important to evaluate multiple providers, compare their features and pricing plans, and read reviews and testimonials from other businesses to make an informed decision.

Check for ‘Must-have’ Features

While the features offered by service providers vary from one provider to another, you can do some research and define a list of key features that will suit your business requirements. Some of the most useful features of a VoIP softswitch are:

• Integrated Billing System

Why get into trouble for compatibility and functionality issues later when you can get a switch with an integrated billing management system at first? You must choose a product that supports multiple currencies and has automatic invoice generation ability.

• Routing Functionality

To ensure a maximum business profit and seamless operations, check for these routing algorithms:

• LCR i.e. least Cost Routing function
• Percentage routing
• Longest prefix match
• Automatic blockage of non-profitable calls
• Client wise routing

• Report Generation

Reports are an integral component in tracking business performance. With numbers in hand, it becomes quite easy to make decisions for business growth. The softswitch should provide reports based on clients and carriers, payments and recharge, client, and destination, etc. so that you get to know the profit and loss figures.

• Call Monitoring

Call monitoring functionality with real-time information is a useful feature. The solution must provide details of active call lists, SIP call logs, and total call monitoring which includes in-progress, concurrent, and connected calls.

• Security and encryption

Check if the provider’s solution is compliant with industry standards and regulations. Evaluate the security features offered by the provider, including encryption, authentication, and access control. A business cannot rely on a system that is not stable and secure. Make sure the softswitch system offers these security functions:

• 2 Factor Authentication
• IP restriction
• Whitelisting and Blacklisting of IPs
• Auto block for unusual / failed login attempts

• Pricing and Billing options

Compare pricing plans offered by different providers and determine the best fit for your business. Consider the pricing model, any additional fees, and the long-term cost of the solution.

Starting Your VoIP Business with Hosted SIP Softswitch!

So, the question that comes to mind is How to Start a Mobile VoIP Business? Rather than exhausting your monetary resources in a one-time purchase, it is better to rent the server so that you can spend on other useful areas and have some buffer amount in hand as well. With hosted softswitch solutions, there is less cost as compared to the overpriced infrastructure. So, if you are ready to turn your softswitch business idea into reality, then make sure you consider all the above points.

REVE Systems offer SIP Softswitch services with an easy-to-pay monthly rental option. Whether you are a small to medium-sized IP Telephony service provider looking forward to starting your retail business or a carrier-grade service provider planning to offer wholesale services, our Softswitch is completely suitable for your business needs.

Contact for Free Demo

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The Difference Between Class 4 and Class 5 Softswitch

7 Benefits of Hosted VoIP Service for Startups

Note- This post has been updated with latest information on 22-02-23.

The post What is SIP Softswitch and How to Choose Best Softswitch Provider? appeared first on Revesoft Blog.

What is a Class 4 Softswitch?

Softswitch is one of the key components for a wholesale VoIP business.  Basically, it’s a server-side software that enables you to connect one phone line to another through the Internet.  To put it more simply, it’s a software that makes IP to IP calls.  A server needs to be deployed for softswitch functionality. 

Choose the Best Softswitch Vendors

Choosing the best softswitch is necessary for optimum business performance. You should consider the following features of class 4 softswitch while selecting from the best softswitch vendors :

Billing Management

Choose a softswitch with an integrated billing system. Separated VoIP billing systems might get you in trouble like compatibility issues and lack of functionality. An integrated billing feature will give you precise control over the business. Keep in mind that unbilled call minutes bring significant loss to your VoIP business and should be prevented by any means. The billing system should also be scalable, automatic and multi-currency enabled. Check out for features like automatic invoice generation, report generation ability, call statistics or diagram. These enable you to monitor and control your service better.

Routing

How good is the routing function? To ensure cost-saving routing, it is necessary to buy routes from termination providers throughout the world. Having a wider range of routes ensures smooth business operation with maximum profit. Look for the Least-Cost Routing (LCR) function in the switch. LCR enables a softswitch to determine which outbound line will be least expensive. Percentage routing is another important feature you should look for. It allows a softswitch to transmit the call through a route that has a maximum percentage and if not available, choose the next maximum percentage. Longest Prefix Match feature matches the incoming call’s prefix with the prefix assigned to each route and selects the route with which the call has a maximum match. An automatic blockage of unprofitable calls is another feature you don’t want to miss.  

Secured Switching Function

Class 4 softswitch should be a stable and secure system ensuring efficient data (Voice and SMS) transmission.   In order to obtain better security, the switch should have VPN support and Network Topology Hiding. Using VPN means the client has to go through the VPN server (VPN is the middleman here) and encrypt/decrypt data before channeling it to the softswitch. Make sure that the VPN server and the softswitch server is the same data center.  This will avoid latency and poor voice quality. Topology hiding is a feature that assures enhanced SIP network security.  Normally, critical IP address data is sent to other networks in regular SIP traffic. Topology hiding prevents third party threats from stealing this data and attacking your SIP network.

Sales and Analysis Report

The ability to generate on demand report, Inbound/Outbound/Unauthorized call report, traffic volume tracking and revenue report help you to keep track of your business performance and accelerate business development. Having all the numbers figured out gives you the leverage to measure your business parameters and take the right business decision.  Also, look for softswitch vendors that offer Payment and Sales report, data export in XML and CSV format. 

Flexibility and Compatibility

Check out protocols and codecs compatibility before you buy your softswitch. Make sure your supplier and clients are using codecs that are supported by your softswtich. If your switch has transcoding option then protocols and codecs can be converted in the desired format. A dual-layer firewall should also be considered.  

Easy and Quick Set Up

Make sure that the softswitch set up is easy and fast. It will help you in quickly getting started with your VoIP business. Look for a user-friendly and robust management portal where all the activities can be managed which will ultimately result in better customer satisfaction, loyalty and retention. All these factors are extremely important for the success of a business. 

Post Sale Support

It is obvious that majority of the softswitch vendors will provide technical support during the whole purchasing journey, but what after that? You must have chosen the best softswitch as per your needs, but eventually you will need technical support for troubleshooting and various other tasks. Ensure that your service provider offers on-demand troubleshooting at any given time. Not only it saves you from the hassle of paying extra money for support but also lets you focus on your important business activities.

Regular Updates and Upgrades

Market Landscape is never constant. Even after you purchase the best softswitch, it is crucial to make it adaptable  in accordance with the ongoing trends. You will need to match your softswitch services with your competitors or even make it better than theirs. This means that regular updates are necessary to keep you ahead in the market.  Check which softswitch vendors provide support with updates and upgrades and if those are free or paid. You can go with the paid ones if it is worth your business requirement. 

Scalability

Lastly, avoid buying your softswitch based on only CC (concurrent calls) and CPS (calls per second) values. For example, while buying a house someone does not just look for a bigger space, right?  Apart from spacing, there are other features to look for in a house. Same goes in case of a softswitch.  CC and CPS are important but also look for features, functionality, integration and customization options.   

Getting Started

VoIP business is quite trending these days and is certainly profitable. You just need to be thoughtful and mindful. Before you choose the best from various softswitch vendors, make a checklist of the features you are looking for in your softswitch that serves your business best.  Choosing the best VoIP Softswitch will ensure maximum profit and seamless business experience for you and your clients.

Contact for Free Demo

Read Also

The Difference Between Class 4 and Class 5 Softswitch

7 Benefits of Hosted VoIP Service for Startups

The post How to Choose Best Softswitch Vendors While Buying a Class 4 Softswitch appeared first on Revesoft Blog.

In today’s time and era of digitization, startups have to face a multitude of challenges, especially when it comes to establishing a reliable, robust, and effective communication system. Traditional phone systems that are full of complexities of hardware no longer meet the demands of modern-day businesses. However, hosted VoIP services have emerged as a transformative solution for startup businesses. In this blog, we are going to explore how hosted VoIP services can benefit startup businesses. 

What is Hosted VoIP Service?

Also known as cloud-based VoIP service, hosted VoIP service is primarily a telephony solution for businesses. By using such a solution, a business can make and receive calls over the internet cloud. This means that there is no need for a traditional telephony setup that requires tons of wire and bulky hardware that could cost a fortune. Hosted VoIP services run in the cloud and are managed by a third-party service provider. 

For calling, businesses can use multiple mobile devices such as softphones, smartphones, or even IP phones that are connected to the internet. Using hosted VoIP services, a business can communicate using voice, video, and messaging services. 

With Hosted VoIP, service providers generate maximum profit at the lowest possible business costs. Worldwide adoption of Hosted VoIP service is increasing notably as more companies look to reduce business costs. And thus, when you talk about real low-capital investment, hosted service surely takes the floor.

Hosted VoIP Service is considered a highly flexible approach for low-capital businesses. It helps Start-up service providers to establish their business with minimum risks. With this service, you can offer a wide range of VoIP-based solutions to your customer base, with no capital investment, and without purchasing your own infrastructure. It’s inexpensive, easy to manage, highly scalable, customizable, and therefore can be deployed easily in no time.

Hosted VoIP Service offerings are ideal for:

• Start-ups
• Small and Medium-sized VoIP/Communication Service Providers (CSPs)
• Enterprises
• Next-Gen Service Providers (ITSPs)
• Telephone Companies (TELCOs)

Benefits of Hosted VoIP Service

Easy and QuickStart of Business

The biggest benefit of opting for a hosted VoIP service is that there’s no need to deal with all the clutter of hardware and cables. There’s no need to hire technicians to do the setup and IT staff to look after it. You don’t even need to spare your office space for the setup. In simple words, getting started with VoIP is very easy.  because it is hosted on a data center located offsite. With a hosted VoIP service,  you can be up and running in just 24 hours, which helps you to build and run a business easily and quickly.

Cost-effective Business Operation

We know that cost is a crucial aspect when it comes to small businesses such as startups. It won’t be wrong to say that every dollar counts, right? The mention of financial savings due to cost-effective business operations is typically one of the primary benefits while discussing hosted VoIP service. 

Besides low monthly cost options, this VoIP service is available without having to invest in your own hardware and infrastructure. So when compared to traditional phone systems, hosted VoIP services come out to be more budget-friendly. 

In addition to this, you need to pay a telephone company to make calls which in case of international calls will save a ton of money for you. Instead, the business only needs to pay a monthly subscription fee basis the number of users or extensions and leverage the power of the internet to make and receive calls. This means that with a pay-as-you-go model, costs are predictable which saves businesses from the burden of any unexpected expenses. Therefore the ability of the business to save on both initial capital expenditures and ongoing operating expenses makes this solution preferable for service providers.

No Hassle of Server Maintenance & Management

Startups already have a lot on their plates and it is hard for them to allocate resources for management and maintenance of communication systems. The best way small businesses can bypass this problem is by opting for hosted services. With a hosted VoIP service, you do not need to bother about Softswitch server maintenance, management, and support, as these are handled by the host i.e. solution provider. At first, it might be hard to believe but it is true that the company that hosts the server will be responsible for taking care of all kinds of support. So, we can say that hosted VoIP service is beneficial for startups as it can save hours, and let them concentrate on the core business issues.

Regular Update and Maintenance without any Expense

There is no up-gradation or maintenance cost. Since the host handles it all, you can have the latest technology up-gradation regularly. Whereas in the on-premise server, you need to concentrate on all the other tasks, and the up-gradation might take a backseat and get delayed. Hence, hosted service ensures continuous timely up-gradation.

24×7 Global Live Customer Support

Highly-trained engineers work round the clock, on cross-vendor platforms through a dedicated online portal, to ensure unmatched quality of service for you. They are always ready to answer your questions or help you configure your services.

Sustainable Business Growth

By eliminating regular business costs like staffing, system upgrades, and maintenance, Hosted VoIP Service provides a dramatically reduced total cost of ownership to organizations. This thereby helps businesses to focus on important issues and eventually ensure sustainable business growth. As a result, Hosted VoIP can often deliver the greatest return against the allocated budget.

Complete Peace of Mind

Hosted service gives you absolute peace of mind by reducing costs, through increased staff efficiencies and technological effectiveness. This service removes all the extra hassle you must go through in case of your own business setup. Serving through the Host’s platform, you can also generate smart revenue and keep it coming. “Less Investment, More Revenue” – the main purpose of Hosted VoIP.

Business Continuity and Reliability

Gone is the time when unexpected or unplanned downtimes used to happen and there was literally nothing that businesses could do about it. Today, cloud technology has revolutionized the world, and service providers are confidently guaranteeing zero downtime. Startups are already short of resources and even a single downtime can impact hugely. 

However, with hosted VoIP services, small businesses need not worry about communication disruptions. A well-established and reliable service provider will always ensure business continuity by providing redundant infrastructure and pre-defined disaster recovery mechanisms. Reliable Hosted VoIP services always prioritize maximum uptime and security of data by implementing best-in-class measures. 

Advantages over Traditional Phone Service

Hosted VoIP Phone Service significantly reduces phone bills in comparison to traditional phone services. In addition to efficient communication, this phone system gives a more professional edge to the business. Keeping up with the recent developments in technology, a Hosted VoIP phone system is far more adaptable than the former phone service. An example is the fiber-optic internet connectivity leading to a gain in reliability and uptime.

Unified Communications

The goal of unified communication is to provide convenient access to cross-channel communications. It supports a wide range of devices like computers, mobile devices, VoIP telephony handsets, and also a number of other technologies.

By putting your phones, add-on services, internet connectivity, and data on a single network, you can achieve:

• Improved team collaboration
• Quicker troubleshooting
• Higher employee productivity
• Better customer satisfaction due to transparency

Advanced Features

Traditional phone systems already provide basic phone features. So what makes hosted VoIP stand apart? Well, these are the advanced features offered by these systems that immensely enhance collaboration and streamline workflows. Some of the key features include Conference calling, video conferencing, instant messaging, and many more. All these features are accessible to team members even those who are geographically dispersed. 

Streamlined Business Communications

Traditional Phone systems come with a lot of complexities when it comes to call routing. Businesses had to go through multiple call transfers and longer customer wait times for incoming calls. But with VoIP softphones, such issues get eliminated to a great extent. These systems are equipped with better routing algorithms that ensure efficient and fast business communication. 

Mobility

Remote work is the latest trend. Businesses and employees need communication systems that support mobility without putting any impact on the way teams can collaborate and do their work. Hosted VoIP services enable employees to use their Business VoIP number to make or receive calls on a wide range of devices like smartphones, tablets, or desktop PCs. The calls appear to originate from the VoIP number and all the calls are routed through the Hosted Voice interface.

This way, employees can benefit from unlimited long-distance calling through the virtual phone system while working remotely, in turn directly reducing costs.

Flexibility & Scalability

With Hosted VoIP, businesses can add phone lines easily within minutes. Contrary to the traditional phone system there is no need for separate phone lines for every new connection.

Therefore, the flexibility and scalability of VoIP are appropriate for businesses with seasonal fluctuations in staffing or companies experiencing fast growth.

Increased Productivity

Unified Communications and Hosted VoIP phone system simplifies collaboration within and between offices. It also increases efficiency and simplifies how employees manage their communications. This system contributes heavily to increasing productivity.

Hence, with less time spent managing PBX system communication, people can focus on tasks that contribute to business goals.

Let’s Sum it Up!

There are tremendous benefits that hosted VoIP services offer to startups and help them build and establish a solid communication infrastructure. Not only saving them a lot of money and support for remote work but also providing unmatched scalability, VoIP services are surely the ultimate hub of tools that businesses need to gain success in today’s competitive markets. With hosted VoIP services, it becomes much easier for small to medium-sized businesses to cultivate collaboration and deliver phenomenal customer service. 

iTel Switch – An Overview

Therefore, considering the hassle-free business process enhanced productivity and smart revenue growth; REVE Systems provides iTel Switch with integrated billing on a hosted basis and iTel Mobile Dialer with Byte Saver on a very low monthly rental options.

Hosted VoIP Softswitch is suitable for small and medium-sized IP telephony service providers for retail. This is also equally beneficial for carrier-grade service providers. It helps wholesale providers who don’t want to take the hassle of maintaining and monitoring the Softswitch server.

Hosted Mobile Dialer offers all the benefits of iTel Mobile Dialer including white-label & customization, VoIP Calls and SMS, cross-OS Instant Messaging, Mobile Top-up, and more. This dialer is compatible with Android, iOS, Windows, and Symbian as well.

Offering a diverse set of advanced features, choice of installation options, 24/7/365 customer care, and market reliability; who knows! Maybe REVE has exactly what you’re looking for in a Hosted VoIP Solution.

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The Difference Between Class 4 and Class 5 Softswitch

Note: This blog has been updated with the latest data and facts on 28-06-23. 

The post 8 Benefits of Hosted VoIP Service for Startups appeared first on Revesoft Blog.