Session Initiation Protocol is a signaling protocol for Internet conferencing, telephony, presence, events notification and instant messaging. The protocol initiates call setup, routing ...

So the race was on to create a new signaling protocol. Some of these protocol specifications were open for everyone to implement, and others were vendor-proprietary solutions.

IP Broadcasting and Session Initiation Protocol Jun 1, 2008 12:00 PM, By Glenn Davies Broadcasting over IP is rapidly becoming the paradigm by which broadcasters are planning future broadcast network ...

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 ...

SIP vs VoIP: In this guide, we explain the difference between SIP vs VoIP and cover how they work together as part of your modern business phone system.

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 ...

Further, though SS7 is a simple signaling protocol as well, it doesn't have the level of expressiveness and flexibility as a text-based protocol like HTTP or SIP.

Emmanuel Proulx is a SIP (Session Initiation Protocol) developer who has written an excellent tutorial on the signaling protocol that is widely used in VoIP to initiate communications sessions ...

The resurgence of interest in VoIP to provide telephone services worldwide is often credited to the use of session initiation protocol (SIP) for signaling. Both residential and enterprise VoIP ...

The protocol supports such features as conference calling, call waiting and call transfer. The primary IP telephony signaling protocols are H.323, SIP and MGCP/MEGACO.