grandstream sip

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

Introduction Communication providers and their partners and users are increasingly eager for a new generation of IP-based services. Now we have the SIP Session Initiation Protocol. SIP was born less than a decade ago in the computer science laboratory. It is the first protocol suitable for multi-user sessions in various media content. Now it has become the specification of the Internet Engineering Task Gro

/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

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

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,

In a conversation, there are other correlations that will be sent. A conversation is an end-to-end sip relationship between two users that lasts a certain amount of time. The dialog process requires that the information between the two user agents be ordered and that the request be routed properly. In this specification, only invite requests can be used to establish a session. When a UAC makes a request in a conversation, it follows not only the gener

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 telephony network. Building a complete multimed

In the dialog, other related information will be sent. A conversation is an end-to-end sip relationship between two users that lasts for a certain period of time. The dialog process requires that the information between the two user proxies is ordered and the request is transmitted through the correct route. In this specification, only the invite request can be used to establish a session. When a UAC sends a request in a dialog, it not only follows th

RTP/RTCP/RTSP/SIP/SDP RelationshipRTP (real-time transport protocol, Transport layer)Real-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 protocol), video conferencing and a Push-to-talk system (with either a/p or

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

http://blog.csdn.net/noiile/article/details/115436 What are the problems with SIP from private network to public network? Address translation of the package. SIP address Translation inside the SIP message. The RTP address translation in the SDP inside the SIP message. The existing structure of the network is complex