SIP: Understanding the Session Initiation Protocol by Alan B. Johnston

SIP: Understanding the Session Initiation Protocol Alan B. Johnston ebook
Publisher: artech-house
Page: 308
Format: pdf
ISBN: 1580536557, 9781580536554

SIP, short for Session Initiation Protocol is an IP telephony signaling protocol used to establish, modify and terminate VOIP telephone calls. The Session Initiation Protocol simply provides interoperability between the various components of the telecommunications equipments as it is an open standard (vendor neutral) protocol. SIP is an IETF open standard scalable and extensible protocol for carrying voice, video and multimedia communications over the IP Network. To work around these limitations the classical solution is to use a SIP server interposed between A and B. A session could be a simple two-way telephone call or it could be a collaborative multi-media conference session. SIP (the Session Initiation Protocol) is a protocol used by some VoIP servers such as asterisk and ekiga.net. Normative References [RFC4575] Rosenberg, J., Schulzrinne, H., and O. The Session Initiation Protocol (SIP) is a signalling protocol used for establishing sessions in an IP network. SIP, refers to Session Initiation Protocol. Levin, "A Session Initiation Protocol (SIP) Event Package for Conference State", RFC 4575, August 2006.