What is SDP in SIP invite?
What is SDP in SIP invite?
SDP stands for Session Description Protocol. It is used to describe multimedia sessions in a format understood by the participants over a network. SDP is generally contained in the body part of Session Initiation Protocol popularly called SIP.
What is an SDP offer?
The Session Description Protocol (SDP) is a format for describing multimedia communication sessions for the purposes of announcement and invitation. Its predominant use is in support of streaming media applications, such as voice over IP (VoIP) and video conferencing.
What is Session version in SDP?
An SDP session description consists of a session-level section followed by zero or more media-level sections. The session-level part starts with a “v=” line and continues to the first media-level section.
How many types of state machine are defined by SIP RFC?
… INVITE client and server transactions are defined in RFC 3261 using two state machines, as shown in Figure 1. …
What is session version in SDP?
What is ice Ufrag?
The read-only usernameFragment property on the RTCIceCandidate interface is a string indicating the username fragment (“ufrag”) that uniquely identifies a single ICE interaction session.
What is SDP in SIP?
SDP is generally contained in the body part of Session Initiation Protocol popularly called SIP. SDP is defined in RFC 2327. An SDP message is composed of a series of lines, called fields, whose names are abbreviated by a single lower-case letter, and are in a required order to simplify parsing.
What is SIP signaling?
SIP Signaling. The agent to which the request is destined and that which returns a response on behalf of a user is called a server or user agent server (UAS). The response accepts, rejects, or redirects the request. Two SIP user agents can communicate directly in a simple SIP-based VoIP voice call. SIP Registrar.
What is the SIP protocol?
Session Initiation Protocol (SIP) is a signaling protocol used for initiating, maintaining, modifying and terminating real-time sessions that involve video, voice, messaging and other communications applications and services between two or more endpoints on IP networks.
