User`s manual

SIP User's Manual B. SIP Compliance Tables
Version 5.0 343 December 2006
Table B-3: SIP Headers (continues on pages 342 to 343)
Header Field Supported
Response- Key Yes
Retry- After Yes
Route Yes
Rseq Yes
Session-Expires Yes
Server Yes
SIP-If-Match Yes
Subject Yes
Supported Yes
Timestamp Yes
To Yes
Unsupported Yes
User- Agent Yes
Via Yes
Voicemail Yes
Warning Yes
WWW- Authenticate Yes
B.4 SDP Headers
The following SDP Headers are supported by the gateway:
Table B-4: SDP Headers
SDP Header Element Supported
v - Protocol version Yes
o - Owner/ creator and session identifier Yes
a - Attribute information Yes
c - Connection information Yes
d - Digit Yes
m - Media name and transport address Yes
s - Session information Yes
t - Time alive header Yes
b - Bandwidth header Yes
u - Uri Description Header Yes
e - Email Address header Yes
i - Session Info Header Yes
p - Phone number header Yes
y - Year Yes