voip protocol

H323 open source code : Www.openh323.org There are protocol stacks, soft terminals (openphone, ohphone), and opengk, openmcu ..... Http://www.voxgratia.org/documents.html Open g.729 ()Http://www.vovida.org/applications/downloads/G729A/#Source_Code Open source code for SIP and MGCP:Www.vovida.comVoIP protocol standard documentation:Http://www.packetizer.com/Http://standard.pictel.com/ftp/avc-site/Http

http://blog.csdn.net/heanyu/article/details/6202500 RTP (Real time Transport Protocol) RTP is a transport protocol for multimedia traffic on the Internet that is published by the IETF (Internet Engineering Task Force) as RFC1889 . RTP is defined as a one-to-many transmission, with the purpose of providing time information and implementing stream synchronization. Typical applications for RTP are built on U

RTP (Real Time Transport Protocol) RTP is a transmission protocol for multimedia data streams over the Internet.Rfc1889Release. RTP is defined to work during one-to-one or one-to-many transmission. It aims to provide time information and implement stream synchronization. Typical RTP applications are built on UDP, but can also work on TCP, ATM, and other protocols. RTP itself only guarantees the transmissio

The IP protocol is the most important protocol in the family of TCP/IP protocols, which provides unreliable, non-connected datagram transport services. So understanding IP protocols is critical to our learning network.IP headerImportant Field Introduction：4bit First ministerial degree: in 4 bytes, determines the IP head of the largest minister of 15*4=60, the general IP datagram header length of 20, at this

We also talked about the SIP Protocol and related SIP protocol stack. In this paper, we propose a software structure and design implementation scheme of the software telephone based on the SIP protocol. this solution is based on the embedded Windows CE platform. The middleware uses the Open-Source SIP protocol stack oS

--> 　　核心提示：-->With the development of the IP network to the multi-service network, especially the development of VoIP in recent years, it is inevitable to transmit signaling messages in the IP network. But in the IP network cannot provide high-quality transmission services like mtp3 and ATM, so the ITU-T proposed an improved version of sscop-sscopmce in Multi-link and non-connection environment ), it is used to transmit signaling messages in an IP-bas

OMA Protocol WizardA concise tutorial to help you understand the OMA Protocol (i) (b) Unlike the TR069 protocol, because OMA is designed to support data synchronization between different devices across networks, OMA's data transfer is not only built on the Internet session layer using HTTP transmission, OMA also supports wireless network WAP using WSP and Blueto

We have analyzed some protocols and the content of the protocol stack. I believe everyone understands the content of the H.323 protocol. Here we will explain the development of this protocol stack. Developing an H.323 protocol stack is an extremely arduous task in the communication design process. The difficulty lies i

Label:IMAP (Internet Mail access protocol,internet) is formerly known as the Interactive Mail Access Protocol (Interactive mail, Access Protocol). IMAP was an email acquisition protocol developed by Stanford University in 1986. Its main role is that the mail client (for example, Ms Outlook Express) can obtain mail info

Software download for analysis: Wireshark-win32-1.10.2.exeRead the guided Tour1. Analyze and apply the ARP protocol2. Analyzing IP Protocols3. Analyzing the ICMP protocol1. Analysis of the format and content of ARP messages(1) The ARP request message of ping 172.18.3.132:000108000604000100e04c512ae8ac12038e000000000000ac120384Physical network Type hardware type:0001-ethernet (1)Protocol type Protocol TYPE:0

the internet, called an "IP address." With this unique address, it is ensured that users can choose their own objects from tens of thousands of computers efficiently and conveniently when they operate on a computer connected to the network. Now the telecommunications network is merging with IP network, IP-based new technology is a popular technology, such as IP network transmission of voice technology (ie, VoIP) is very popular, other such as IP Over

The similarities and differences between RTSP, RTMP, and HTTPCommon:1:RTSP RTMP HTTP is applied at the application layer.2: Theoretically RTSP rtmphttp can do live and on-demand, but generally do live with RTSP RTMP, do on-demand http. Video conferencing when the original SIP protocol, and now basically replaced by the RTMP protocol.Difference:1:http: Hypertext Transfer Protocol (FTP is a file Transfer

Let's look at what happens when we enter http://www.mycompany.com:8080/mydir/index.htmlin the browser, behind the scenes.First HTTP is an application layer of protocol, in this layer of protocol, is just a communication specification, that is, because the two sides to communicate, we have to agree to a specification beforehand.1. Connection when we enter such a request, first to establish a socket connectio

Reprint: http://easydarwin.org/article/Streaming/141.htmlThe similarities and differences between RTSP, RTMP, and HTTPCommon:1:RTSP RTMP HTTP is applied at the application layer.2: Theoretically RTSP rtmphttp can do live and on-demand, but generally do live with RTSP RTMP, do on-demand http. Video conferencing when the original SIP protocol, and now basically replaced by the RTMP protocol.Difference:1:http: Hypertext Transfer

Transfer http://blog.csdn.net/goodboy1881/article/details/668556 ------------------------------------------------------ Put the three Protocols together for learning because these three protocols are on the same layer. ARP is used to find the MAC address of the Ethernet NIC of the target host, and the IP address carries the message to be sent. The data link layer can get the data transmission information from ARP, and get the data information to be transmitted from the IP address.1. IP

There has been a problem for a long time, everyone is talking about the HTTP protocol, TCP protocol, IP protocol, what is the difference between them, what is the use, no one told me, recently read this "illustrated http" understand some of the film from the bookFirst, understand a transmission stream to expandFor example, HTTP is the first client in the Applicat