SIP VoIP Gateway

This is a device allowing a user to make VoIP calls using session initiation protocol (SIP). SIP is a telecommunication technology developed as a fast, easy standard for delivering IP-based data, voice, and video communications.

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Detailed description of SIP protocol

SIP protocol was made within IETF (Internet Engineering Task Force) – organization occupied with establishing Internet standards and general standards concerning TCP/IP protocols.

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Fusion Telecom Sol Inc

Big Allo is a global provider of Internet telephony services.Using any of our products, you can place and receive calls through any Big Allo product via the Internet by using Voice over Internet Protocol (VoIP) technology. Through its cutting-edge solutio