A Voipswitch or softswitch is a very important device element of any
telecommunications network. It connects different IP networks in order to
deliver end-to-end communications
Appears on the computer screen by the arrival of the call or fax. By the arrival of a call “Call Controller” not only identifies the caller but also gives you a list of variants: to accept the call, reject it, send a voicemail or send an answer as a text message which will be instantly converted into speech and will sound to the caller.