to establish a sip session.
Next-generation services
SIP is flexible, scalable, and open. It inspires the power of a new generation of Services launched by the Internet and fixed and mobile IP networks. SIP can complete network messages on multiple PCs and phones and simulate Internet sessions.
Unlike the long-standing International Telecommunication Union (ITU
and simulate Internet sessions.
Unlike the long-standing International Telecommunication Union (ITU) SS7 standard for call establishment) and the ITU H.323 Video protocol combination standard, SIP works independently of the underlying network transmission protocol and media. It specifies how terminal devices of one or more participants can establish, modify, and interrupt connections, regardless of voice,
1 , what is SIPSIP (Session Initiation Protocol) belongs to the IP Application layer protocol, which is used to provide the user with session application on the IP network. A session refers to the communication of voice, video, and other media forms between two or more users, possibly IP telephony, conferencing, instant messaging, and so on.SIP is a signaling protocol that corresponds to a call signaling protocol (such as SS7 ISUP) in a traditional te
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Core sip documents
RFC 2543
SIP: Session Initiation Protocol (obsolete)
RFC 3261
SIP: Session Initiation Protocol
SDP Related Documents
RFC 2327
Session Description Protocol (SDP)
RFC 3264
An offer/Answer Model with
Firewallnat
In fact, the essence of the light-mouth board is equivalent to NAT device. To achieve NAT penetration, there is no problem with the SIP processing of the optical orifice plate.
Firewall is a passive network security defense technology, located at the boundary of the network, executing the access control policy between the two networks, preventing the external network from illegally accessing the internal information resources, or preventi
BICC vs sip-Comparison of NGN Protocol
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One notable feature of the Next Generation Network Based on Softswitch is the separation of Call Control and bearer control. In terms of call and control of communication, from the Standard Research of the International Telecommunication Union (ITU-T) and Internet Engineering Task Group (IETF), there are two protocols that deserve
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 solve the problem:
From the monitoring industr
Analysis of SIP route and record_route/SIP Routing Mechanism from: [url] Routing
Analysis of SIP Routing Mechanism (zz)We have already introduced sip-related knowledge about important SIP header domains, registration processes, and session processes. Now we will introduce t
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 communication protocol analysis software for th
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 also using RTP as a media transmission protocol. Originally presented by the IETF Mmusic (multiparty multimedia session control) workgroup.
SIP
prepaid services and video emails.
Operators can flexibly adjust their media processing capabilities by leveraging the scalable media server architecture that has passed tests in the world's busiest Web server applications. Cantata has brought the benefits of its large-scale investment in server technology, open-source development, and Moore's Law to the IP Media Server market.
Cantata integrated media gateway 1010
Cantata integrated media gateway 1010IMG 1010 ?) Is an integrated media and sign
SIP is a tool for generating C + + interface code for Python, similar to SWIG, but using a different interface format. The idea originated in Swig, primarily to create the QT package for Python, which was used to create PyQt and Pykde , and to support the QT Signal/slot system. This article mainly introduces the compilation and installation of SIP and the birth of C + + code into Python under the window pla
applications;Completely part of the service-oriented architecture SOA)Can be displayed in any type of browser or device, also known as multi-channel transmission;Provides a personalized view of applications through the WebLogic Portal.At present, the capabilities of these combinations are generally referred to as the Service Delivery Platform, SDP ). This example blur the differences between wireless, wired, VoIP, and Web-based transfer channels. In fact, these channels can now work collaborati
"swatchmate cube" in smart devices that appeared in 2014 was definitely a surprise to me. As a portable color detection device, it can capture the colors from any object surface, helping users to easily capture these colors.
If the cube is reliable, the designer will be able to capture all the wonderful colours of nature through it. So it has become one of the first devices I want to start this year. But the cube is not listed, obviously it is not the protagonist I want to introduce
In the process of building PYQT I met a very disgusting problem, in the installation of the SIP after compiling the source code after the installation process has been prompted me: Operation not permitted , I even reinstall the system is useless, finally through the data to overcome the problem.
Installing SIPDownload the SIP source code package after extracting it into its folder:python configure
/success (actual Sipprovider callback), the Fail/sucess interface of the transactionclient is called Public classTransactionclientextendsTransaction {Transactionclientlistener transaction_listener; Publictransactionclient (Sipprovider sip_provider, Message req, Transactionclientlistener listener) {Super(Sip_provider); Request=NewMessage (req); Init (Listener, Request.gettransactionid ()); //This.transaction_listener = listener;} //The actual Sipprovider callback Public voidOnreceivedmessage (Si
The Cisco SIP VoIP architecture solution provides users with many services. The table lists various IP telephone services that can be implemented by Cisco SIP VoIP Architecture solutions.Cisco SIP VoIP architecture solution ComponentsThe Cisco SIP VoIP architecture solution consists of the following elements:Sip ip tel
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 on different media (such as text, multimedia,
Basic SIP Application
As one of the main VOIP communication protocols, the SIP protocol is simple, flexible, and open, and is gradually dominant in the VOIP communication field. The main methods used for SIP Communication include SIP terminals, proxy/targeted servers, location servers, and PSTN gateways. Currently, th
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 to mention ITU-T, we will first talk about t
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