Class 4 Softswitch is a subdivision of VoIP Softswitch, which is used to switch calls using IP.

This Softswitch allows for the routing of a larger volume of calls.

This makes it the most suitable type of softswitch to make long distance and international calls.

That is, if you wish to make cross-border calls, to another country from India, a class 4 softswitch is what will help you.

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This also makes it clear that this particular class of softswitch helps to manage wholesale call traffic.

The calls can be between carriers or carriers and exchanges.

Class 4 Softswitch, despite enabling larger volumes and international calls, really helps in major cost reductions as compared to calls made through PSTN.

It allows for the interconnection of various VoIP servers.

Suppliers and service providers can make use of this softswitch for their back-end calls.

Important characteristics to be expected in a class 4 softswitch includes –

• Transcoding
• Calls per second rate
• Protocol support and conversion
• Average time of one call routing
• Number of concurrent calls

Class 4 Softswitches also provide features like billing interface, call record maintenance, information filtering, etc.

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