The Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, and terminating communication sessions that include voice, video and messaging applications. [1] . SIP is used in Internet telephony, in private IP telephone systems, as well as mobile phone calling over LTE (VoLTE). [2]

The Session Initiation Protocol (SIP) is a signaling protocol used for controlling communication sessions such as Voice over IP telephone calls. SIP is based on request/response transactions, in a similar manner to the Hypertext Transfer Protocol (HTTP).

SIP messages are of two types − requests and responses. The opening line of a request contains a method that defines the request, and a Request-URI that defines where the request is to be sent. Similarly, the opening line of a response contains a response code.

2023年12月13日 · SIP Protocol defines the format and sequence of backend messages that computers use to coordinate and initiate real-time media communications.

2024年12月11日 · Session Initiation Protocol (SIP) is a signaling protocol used to establish, modify, and terminate real-time communication sessions over the internet. It is a text-based protocol that enables users to initiate and manage multimedia communication sessions, including voice and video calls, instant messaging, and media distribution.

2020年9月22日 · SIP messages : SIP may be a text based protocol modeled on HTTP. It uses messages in ASCII text. Each message features a header and a body. the varied SIP messages are as follows.

2011年8月29日 · Basic knowledge about the SIP Protocol and the call flow Messages. 1. Call Flow between PBX to Cisco SIP IP Phone—Successful Setup and Disconnect. Below diagram illustrates a successful gateway-to-Cisco SIP IP phone call setup and disconnect.

Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, modifying and terminating real-time communications sessions between Internet Protocol (IP) devices. SIP enables voice, messaging, video and other communications applications and services between two or more endpoints on IP networks.

The SIP protocol is an IP telephony control signaling protocol that is used for establishing and terminating media and telephony sessions (voice, video, etc) between one or more participants. The protocol runs on the application layer of the OSI model.

2023年9月25日 · SIP stands for "session initiation protocol” and enables voice, messaging, video, and other types of communication through application layer protocols. SIP was first developed by the Internet Engineering Task Force in 1996 to facilitate …