Discover how our products can revolutionize the way you communicate and collaborate.


Explore our advanced voice solutions designed to optimize your communication workflows.

Diverse range of DID number solutions designed to enhance your communication capabilities.

Experience unparalleled communication efficiency with our advanced SIP Trunking Solutions.

Cutting-edge technology to proactively detect and neutralize spam flags on your DID Numbers.


Wherever your audience is, our platform ensures seamless messaging across diverse channels.

Build customer journeys by fostering interactive conversations, all within the framework of your app. 

Connect with your audience in a simple and effective way through our cutting-edge SMS platform. 


Harness the power of IDT as your chosen carrier while leveraging your platform’s advanced features and services.

Integrate Twilio with our robust carrier routing platform to achieve unparalleled Voice termination system.

Experience reliable and high-quality communication services while leveraging the advanced capabilities of Genesys. 

Integrate IDT with the collaborative strength of MS Teams, unlocking efficient and feature-rich communication. 

Experience the power of our carrier network seamlessly connected to Plivo through our cutting-edge BYOC solution. 


Experience the power of our online voice tools, designed to simplify communication management. 

Ensure the authenticity and integrity of outbound calls with our STIR/SHAKEN Verification Check tool. 

User-friendly tool to verify the reputation of your business number, ensuring that it remains trusted. 

Compare and gain insights into outbound call expenses, optimize budget, and make informed decisions. 

Easily estimate and compare the costs associated with different DID numbers providers. 

Compare inbound VoIP rates among top CPaaS providers and optimize your inbound call costs. 

Generate custom SMS templates. 


Empower yourself with the resources you need to thrive in the dynamic landscape of communication.

Articles covering a wide range of topics.

Get answers to common queries.

Find instructions to make the most of our products.

Discover telecom insights and trends.

Find definitions of popular telecom terms.

Explore how our solutions have helped businesses.

Latest telecom trends, innovations, and market insights.


A global telecom partner built to meet your needs. 

Discover the story behind our commitment to delivering innovative solutions to connect people and businesses worldwide. 

Learn about our robust network infrastructure that spans across the globe, ensuring reliable and secure connectivity. 

Got a question, feedback, or need assistance? Our dedicated team is here to help!

Find partners or sign up for partnership programs.

Learn / Blog

What is a Softswitch?

|  3 min
What is Softswitch Comp Software
In this article

Making a phone call is something we do pretty much without thinking about it. You lift the receiver, dial, and the call is connected. But let’s pause for a second to consider what happens behind the scenes. 

In the past, the connection would have been made by an electromechanical exchange that relied on moving parts. In more recent years these have been supplanted by electronics known as a ‘switch’. This is similar to the router you have at home but on a larger scale and it makes the connection across the telephone network. In the case of the latest VoIP systems, this is more likely to be achieved using a ‘softswitch’ which is software on a computer that performs the switching task. 

Types of VoIP switch

VoIP switches come in two types. A class 4 switch is used by a VoIP wholesale carrier such as IDT Express in order to safely route voice traffic over long distances. When a call is made, the switch ensures that it reaches the intended recipient, taking the most efficient route to get there. 

A class 5 switch is used to provide services for the retail end user of the service. These also route calls but, in addition, they deliver features such as call forwarding, conference calls and voicemail. A class 5 switch is what you get if you opt for a hosted PBX system to handle your business voice traffic. 

You can, of course, have an on-site switch in the form of a more traditional PBX, or you can have your own softswitch running on an in-house server. It’s becoming increasingly popular to have the switch hosted in the cloud. 

Cloud switches

Having your switch located in the cloud gives you a number of advantages. Firstly it’s highly scalable, as your business grows or if you need to handle seasonal peaks in call traffic, you can easily increase the capacity without the need for additional hardware. 

What is Softswitch Cloudswitch

It also means less hardware on site, so you reclaim some space but you also save on the power and maintenance costs of running your own system. There are major advantages in the number of features available too. Having a cloud-based switch gives you access to a whole range of calling and call management features. This can make your smaller business sound like a much larger one when people call. 

You can, of course, also connect to a cloud switch from anywhere. This means that branch offices, home workers and mobile staff can access their office phone from anywhere, taking advantage of all the features we’ve talked about, but also remaining accessible on their office number when they are out and about. 

There are additional benefits in planning for business continuity. If you need to relocate to other premises then provided that you have an internet connection, you will still be able to access your phone system and all of its features and you won’t even need to change your number. 

Share this article

Leave a Reply

Your email address will not be published. Required fields are marked *


Meet our wholesale voice routing

Fulfill all your voice calling needs with our category leading wholesale A-Z Voice Termination.
Try IDT Express for a $25 Credit

Get $25 Free Trial Credit

Get IDT Express articles in your inbox

The best source of information in the telecom industry. Join us.

    Most Popular

    |  9 min
    Within this decade, the customer experience management market is anticipated...
    |  8 min
    Recent studies by Pronix Inc reveal that the demand for...
    |  8 min
    According to studies by eMarketer, with fewer and fewer people...