sip protocol tutorial

SIP is an application control signaling protocol proposed by IETF. As the name implies, it is used to initiate a session. It can be used to create, modify, and end multimedia session processes attended by multiple participants. Participants can communicate with each other through multicast, unicast, or network connection. There are clients and servers in the SIP.

SIP (Session Initiation Protocol) Conversation Initiation Protocol is an application layer control (signaling) protocol for network telephony and conferencing. It is mainly a multimedia communication protocol based on IP network. It can realize the signaling functions are al

This tool is a real-time analysis of the SIP Communication Protocol, which is the main function of the Communication Engineering of zhongzheng University. In addition, the distributed design can be used to analyze cross-domain sip packets, draw a complete signaling flowchart, and control the web interface... background in view of the fact that there is no free co

Address: http://www.sipcenter.com/sip.nsf/html/Chinese+SIP+Overview Introduction Next-generation services Historical Review Advantages of SIP: Web-like scalable open communication SIP session Composition Introduction Communication providers and their partners and users are increasingly eager for a new generation of IP-based services. Now we have

I. background and functions of the SIP protocolSIP (Session Initiation Protocol) is developed to help provide advanced telephone services that span the internet. Internet telephone IP telephone) is evolving to a formal business telephone model, and SIP is an important member of the series of protocols to ensure the implementation of this evolution.SIP is part of

I. Overview Review the video surveillance market, the monitoring platform system used by the signaling control protocol is not unified, resulting in the interconnection of the technical threshold. This is a bit similar to the 80 's China's switch market eight system of the situation. These reasons hinder the network era of large-scale carrier-level video surveillance, remote access, centralized management needs. The industry has explored two ways to s

1. Introduction to the SIP protocol Many applications on the internet need to establish and manage a session. The session here refers to the exchange of data between participants. Considering the actual situation of participants, the implementation of these applications is often very complicated: Participants may move between agents, they may have multiple names, the communication between them may be based

Author: gnuhpcSource: http://www.cnblogs.com/gnuhpc/ 1. How is the SIP coming and how is it constructed? In general, SIP is a lightweight signaling protocol, which can be used as a signaling for audio, video, and timely information. Speaking of how the SIP is coming out, we need to mention H.323, and the standard has

SIP (Session Initiation Protocol, conversational initial protocol) was developed to help provide advanced telephony services across the Internet. Internet telephony (IP telephony) is evolving into a formal business telephony model, and sip is an important part of the NGN (Next Generation Network) family of protocols ne

and established the session. A called party from receiving invite request, to terminate invite established dialogue end, is called the callee. Location Service: Positioning services. The location service is used for SIP forwarding or proxy servers to determine where the caller might be. It contains a table that is bound to Address-of-record, and the callee may have 0 or more records. A bound record can be added and deleted through multiple channels

the attributes of a session. Finally, section 15th describes how to terminate a session. Section 8th, 10, 11, 12, 13, 14, and 15 describes the complete UA core (section 9th describes cancellation and is used in UA core and proxy core ). Section 16th describes proxy servers, which are used for message routing between two UA instances. 6. Protocol definitionThe rankings described below have additional significance for SIP:Address-of-record: record addr

The SIP Protocol provides a standard-based IP communication method for multiple devices and applications. This White Paper describes the support for the SIP protocol in the Cisco communications system. Cisco's Unified Communication System includes IP voice, data and video communication products and applications, which

RTP/RTCP/RTSP/SIP/SDP relationship1. RTPReal-time Transport Protocol is a Transport layer protocol for multimedia traffic on the Internet. The RTP protocol details the standard packet format for transmitting audio and video over the Internet. RTP protocols are commonly used in streaming media systems (with the RTCP

1 Introduction SIPSession Initiation Protocol, Session Initiation Protocol), SAPSession Announcement Protocol, Session notification Protocol), SDPSession Description Protocol, Session Description Protocol) are three sessions) rela

Abstract sip, sap, and SDP are important protocols involved in NGN and 3tnet. Based on introduction and analysis of SIP, sap, and SDP protocols, this paper provides a multimedia conference application instance based on the combination of the three protocols. Key words: SIP sap SDP 1 Introduction Session Initiation Protocol