Session Initiation Protocol (SIP) is an Internet Engineering Task Force (IETF) standard protocol for initiating, modifying and terminating an interactive user session that involves multimedia elements ...

There is the persistent narrative that the Securities Information Processor (SIP) is a dysfunctional public road, costing investors much more than the proprietary autobahns fast traders get to use.

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 ...

John Ridley is stuck between the old world of circuit-switched telephony and the new world of voice over IP. How soon the Coca-Cola network executive can move forward depends largely on which IP ...

The session initiation protocol (SIP) is one of the most popular signaling protocols used in applications that require a session setup and parameter negotiation before actual communication, as well as ...