SIP Softswitch
It is a device capturing and controling all the signals, which are being created by the whole system, especially the made and received phone call signals. The device is mostly used for connecting regular phone system with the Internet and backwards.
SIP protocol was made within IETF (Internet Engineering Task Force) – organization occupied with establishing Internet standards and general standards concerning TCP/IP protocols.
Callvox
Major trends are changing the global telecommunications landscape. Voice traffic is rapidly migrating from large integrated international exchange carriers to more narrowly focused regional providers. This change is driving increasing demand for specializ
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