sip proxy

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. A client is an application that establishes a

I believe that you have mastered the basics of IMS and SIP protocols and some precautions. These contents are also described in two articles, "briefly describing the SIP protocol in IMS" and "Problems Existing in IMS and SIP. Next we will explain the SIP Protocol extensions in IMS. 1.

parameters; Call Establishment: the establishment of the session parameters of the caller and the called party; Call Management: includes transferring and terminating sessions, modifying call parameters, and calling services. The SIP protocol can be combined with other IETF protocols to establish a sound multimedia structure, such as providing real-time data transmission and service quality QOS) Feedback of real-time transmission protocol RTP) real-t

need to modify the Conditional compilation option. For Win32-incompatible APIs, you can replace and modify them with other WinCE APIs. In addition, some header files and pre-defined files of WinCE and Win32 are also different and need to be modified. table 1 provides some migration examples. Porting JRTPLIB on WinCE is similar to porting the SIP protocol stack. Note that the maximum RTP loading data packets under WinCE is 2 K, which is different from

Previously, we handled some application problems related to the SIP Session Initiation Protocol. Many solutions are summarized. I wonder if you have mastered it. See Basic Q A of the SIP Session Initiation Protocol. Let's add more content in this article. Is X standard supported? We have implemented and tested a large number of standards. We listed these standards in the Product Information Center (see ref

Today the work encountered two devices between the SIP packet crawl and analysis, and then combined with the RFC3261 document description, recorded today understand.1.SIP Protocol:Detailed RFC documentation for SIP is visible: rfc3261Session initiation, which allows you to use Internet endpoints (user agents) to find participants and allow you to create a shareab

Today, I encountered the capture and analysis of the SIP packets between the two devices. Then, combined with the instructions in rfc3261 documents, I recorded what I understood today. 1. SIP protocol:The detailed RFC documentation for SIP can be found at: rfc3261Session Initiation (Session Initiation Protocol) allows the use of internet endpoints (User proxies

effective way to debug network programsThe following describes the software mainly based on open source software .... For details, see the original document.2. Video Communication Based on the SIP protocolHttp://tech.163.com/05/0101/15/1915T5RL00091590.htmlI talked about three aspects:The relationship between the SIP protocol and its development, the basic components of the

Chapter 3 SIP messages SIP is a text-based protocol that uses the UTF-8 character set (rfc2279 ). A sip message can be a request sent from a client to a server, or a response sent from a server to a client. Both requests (rfc3261 section 7.1) and responses (rfc3261 section 7.2) are in the format described in rfc2822. However, there are some differences between ch

VoIP intercom systems, the qutecom software interface is as follows: Ii. Official qutecom website Qutecom open source Official Website: http://www.qutecom.org/ As follows: Iii. Introduction to sip and RTP protocols 3.1 sip Overview SIP is an application control (signaling) protocol proposed by IETF [1]. As the name implies, it is used to in

The SIP Session Initiation Protocol has been added in many systems. Therefore, we have summarized and summarized some problems of the SIP Session Initiation Protocol, hoping to help you solve some problems. For the sip faq, the Session Initiation Protocol SIP Servlet 1.0 support (JSR 116) was added for the first time i

The registration process of SIP is easy to understand. First, I have a number, but if my number can be moved, how can the server find me? The SIP registration mechanism reports the location of the SIP terminal to the registration server. The registration server is only a logical role. It is not necessarily an independent physical entity. It can be the same physic

Kamailio is an open-source SIP server, formerly known as openser. Kamailio is an open source, gpl2, SIP Server Routing platform. It is written in C for Linux/Unix plaforms and focuses on performance, flexibility and security. On Nov 04,200 8, kamailio and SIP Express Router have started the SIP router project. Web Link

1. Sip1.1. overview 1.1.1. Basic components of the SIP System (1) User AgentIn sip, the user proxy (UA) is the endpoint entity. The User Agent initiates and terminates a session by exchanging requests and responses. As an application, UA includes the user proxy client and user prox