SIP protocol was made within IETF (Internet Engineering Task Force) – organization occupied with establishing Internet standards and general standards concerning TCP/IP protocols.
BroadVoice
BroadVoice is the leading provider of high quality, feature-rich broadband phone services to consumers and businesses. BroadVoice VoIP phone service allows thousands of customers in the United States and more than 120 other countries to use their broadba
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