The Session Initiation Protocol (SIP) is used for controlling multimedia communication sessions such as voice and video calls over Internet Protocol (IP) networks. Thus SIP based dialers are smooth and obviously a triumph over communication blockage. VOS3000 switch is well organized with any SIP based dialers. The billing and account management is as flat as pancake for sure. Try it once and break all the barriers!
Posted on: Wed, 03 Dec 2014 14:13:58 +0000
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