How Class 4 Softswitch is different than Class 5 Softswitch


Softswitch is the most essential and central device in a telecommunication network. It enables phone call connection from one line to another across the internet or telephone network. Traditionally, phone calls were routed by hardware, whereas Softswitches route calls via software.

The Softswtiches are designed to handle calls over the internet with the ultimate aim to manage VoIP (Voice over Internet Protocol) calls. Softswitch offers distinct yet cost-effective features like call recording, monitoring, call queuing, online faxing, instant messaging, make audio calls, video calls, conference calls, and many more.
Ordinarily, VoIP Softswitches are divided into two classes: Class 4 Softswitch and Class 5 Softswitch. Each of them is unique has its features and functionalities. Let’s explore the differences between two major Softswtiches so that you can decide which one is suitable according to your business requirements.

Class 4 Softswitch is idle to route a large volume of long-distance calls at a low price. These calls can be in between carriers, or local office exchanges. Generally, it is used in VoIP wholesale models because it efficiently routes VoIP traffic between carriers for a long separation. It transmits large volumes of voice traffic over and between different exchanges known as Local Access and Transport Areas (LATAs). That’s why class 4 Softswitch is also called a wholesale solution.

Key characteristics of class 4 Softswitch

– Billing interface including CDR

– Filtered third-party routing engine

– Calls per second rate

– Protocol support and conversion

– Secured firewall system

– Intelligent call routing

– Numbers of concurrent calls

On the other hand, Class 5 Softswitch route calls between end-users or consumers in moderately smaller areas like city, town, and nearby locations within a country. Simply, Class 5 Softswitch intended to enable the calls in the same city, town, or region. Also, it is capable to deliver services for non-IP devices for regular phones. Pinless and calling card services to allow end users to dial into a local Class 5 Softswitch and use VoIP services.

Key characteristics of class 5 Softswitch

– IVR – Interactive voice response

– Analog-to-digital conversion

– Social Media usability

– Call holding

– Call transferring

– Call back

– Call authentication

– Billing and Routing

Both of the Softswtiches route calls, however, there are subtle differences. Class 4 Softswitch receives calls from providers and routes them between the carriers, while class 5 Softswitch receives calls from end-users and routes them between users.

Class 4 Softswitch is a wholesale solution. It means that it works as a central office telephone exchange that interconnects local exchange carrier offices for long-distance communication.

Contrarily, class 5 Softswitch is a retail solution that is a telephone exchange in the public switched telephone network. Usually, it is located at the local telephone communications company’s central office by directly serving end-users.

Want to get VoIP Softswitch to your business? Connect with us now! Ecosmob offers ultra-modern class 4 and class 5 Softswitch development services. Let us know your business requirements, and we will propose you the best VoIP Softswitch solutions for your business.

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