Softswitch is a central device in a telecommunications network that connects telephone calls from one phone line to another, across a telecommunication network or the public Internet, entirely by means of software running on a general-purpose system.

1. Key Characteristics of
Class 4 & 5 Softswitch
Softswitch is a central device in a
telecommunications network that connects
telephone calls from one phone line to another,
across a telecommunication network or the public
Internet, entirely by means of software running on a
general-purpose system.
Call authentication
Billing and Routing
IVR
Callback
Analog-to-digital conversion
Support for Codec, Media transcoding
Social Media usability
Call transfer
Call holding
Call forking
Protocol support and conversion
Transcoding
Calls per second rate
Average time of one call routing
Number of concurrent calls
Flexible UI (user interface)
Intelligent call routing
Billing interface including CDR
Secured firewall
Filtered Third party routing engine
Class 5 Softswitch is responsible for transferring calls to Class 4
Softswitch after receiving the calls, within small areas, for long
distance routing through retail VoIP service providers.
Class 5 SoftswitchClass 4 Softswitch
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