What is the sip protocol?

The sip protocol refers to the session initiation protocol, which is a multimedia communication protocol developed by the IETF. SIP is an application layer signaling control protocol used to create, modify and release sessions of one or more participants; it is an IP voice session control protocol originating from the Internet and is flexible, easy to implement, easy to expand, etc. Features.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

SIP (Session Initiation Protocol)

SIP (Session Initiation Protocol) was developed by the IETF (Internet Engineering Task Force) Multimedia communication protocol.

SIP is a text-based application layer control protocol used to create, modify and release sessions with one or more participants. These sessions can be Internet multimedia conferencing, IP telephony or multimedia distribution. Participants in a session can communicate via multicast, meshed unicast, or a mixture of the two.

SIP is an IP voice session control protocol originated from the Internet. It is flexible, easy to implement, and easy to expand.

SIP interoperates with the Resource Reservation Protocol (RSVP) responsible for voice quality. It also works with several other protocols, including Lightweight Directory Access Protocol (LDAP) for location, Remote Authentication Dial-In User Service (RADIUS) for authentication, and RTP for real-time transport.

With the advancement of computer science and technology, the IP data network based on packet switching technology has replaced the traditional telephone network based on circuit switching as the core position in the communication field with its convenience and cheapness. As an application layer signaling control protocol, the SIP protocol provides complete session creation and session change services for a variety of instant messaging services. Therefore, the security of the SIP protocol plays a vital role in the security of instant messaging.

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