SIP Header Fields

Session Initiation Protocol utilizes a variety of header fields to convey information about the session, the participants, and the capabilities of the user agents. These header fields are essential for the setup, management, and termination of sessions. Below, we explore some of the primary SIP header fields, outlining their purpose and significance in SIP communications. 

SIP header fields outlined below among others, enable detailed control and customization of SIP sessions, providing mechanisms for routing, session management, security, and feature negotiation within SIP-based communication systems.