Session Initiation Protocol (SIP) History-Info Header Call.
From header field contains a tag parameter which serves as a dialog identifier and will be described in Section 1.6, “SIP Dialogs”. Call-ID header field is a dialog identifier and it's purpose is to identify messages belonging to the same call. Such messages have the same Call-ID identifier.
Session Initiation Protocol (SIP) headers can provide additional information about a call that a CCXML or VoiceXML application can use to determine what processing needs to be done for that call. Voice Portal uses a collection of session variables to present this information to the application. However, not all SIP headers are accessible and many accessible headers are read only.
These use cases are derived from those provided in the SIP History-Info call flows document. The objective is to describe the optimal way to correlate the History-Info header fields with a PASSporT with diversion information to increase the level of confidence in the History-Info header field by the terminating entity making use of the information.
Modifying the User Agent SIP Header wit. Modifying the User Agent SIP Header with SIP Profiles.. Sample SIP INVITE message with the User-Agent name ( field is highlighted in bold):. It is possible to Rename the default SIP User-Agent name by Modifying the User Agent in SIP Header using Sip profile.
Gateway-to-Gateway Call—SIP 3xx Redirection Response After Receipt of a SIP 18x Information Response. Figure B-2 illustrates a successful gateway-to-gateway call setup in which a SIP 3xx Redirection response is processed after the receipt of a SIP 18x Information response. In this scenario, the three end users are identified as Alice at phone A, Bob at phone B, and Carol at phone C. Alice.
Introduction to SIP offers a made easy tutorial on SIP (Session Initiation Protocol). It is for beginners to ease the way they learn SIP and Multimedia Services as a whole. It talks about user agents, servers, commands, methods, responses, signalling techniques involved in SIP.
The Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, and terminating real-time sessions that include voice, video and messaging applications. SIP is used for signaling and controlling multimedia communication sessions in applications of Internet telephony for voice and video calls, in private IP telephone systems, in instant messaging over Internet.