sip header

SIP Headers – Compact Form

SIP Headers – Compact Form

Many common SIP header fields have a compact form where the header field name is denoted by a single lower case character. Some examples are given below −

Header Compact Form
To T
Via V
Call-ID I
Contact M
From F
Subject S
Content-Length I

Here is the list of meaning of all the header fields.

SIP – Headers

asterisk: sip remove header

SIP : Session Initiation Protocol

Basic Call Flow – SIP