Session Initiation Protocol (SIP) is a control (signaling) protocol developed by the Internet Engineering Task Force (IETF) to manage interactive multimedia IP sessions including IP telephony, ...
In our last VoIP installment, we looked at the main reasons why SIP has become a widely adopted protocol, but we left details of the protocol’s inner workings fairly vague. This article will drill ...
Although many enterprises are eager to adopt SIP, they see their legacy PBX systems as a roadblock to the cost savings and enhanced applications that SIP would bring. This paper outlines how to ...
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