Session Initiation Protocol (SIP) is a communication 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. SIP enables the establishment and management of multimedia communication sessions, supporting features like call setup, call transfer, and conference calling. It plays a crucial role in VoIP (Voice over Internet Protocol) systems, facilitating seamless and standardized communication over the internet. SIP's flexibility and compatibility make it widely adopted for various applications, promoting efficient and interoperable real-time communication services.

Session Initiation Protocol (SIP) is a communication 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. SIP enables the establishment and management of multimedia communication sessions, supporting features like call setup, call transfer, and conference calling. It plays a crucial role in VoIP (Voice over Internet Protocol) systems, facilitating seamless and standardized communication over the internet. SIP's flexibility and compatibility make it widely adopted for various applications, promoting efficient and interoperable real-time communication services.