Cisco SIP IP Phone User Manual

A-8
Cisco SIP IP Phone Administrator Guide
Appendix A SIP Compliance with RFC 3261 Information
SIP Session Description Protocol (SDP) Usage
SIP Session Description Protocol (SDP) Usage
Proxy-Authorization Yes
Proxy-Require Yes
Record-Route Yes
Referred-By Yes
Referred-To Yes
Remote-Party-ID Yes
Replaces Yes
Requested-By Yes
Require Yes
Response-Key No
Retry-After Yes
Route Yes
Server Yes
Subject No
Timestamp Yes
To Yes
Unsupported Yes
User-Agent Yes
Via Yes
Warning Yes
WWW-Authenticate Yes
SDP Headers Supported?
v—Protocol version Yes
o—Owner or creator and
session identifier
Yes
s—Session name Yes
t—Time description Yes
c—Connection information Yes
Header Field Supported?

Cisco SIP IP Phone Specifications

General

Brand	Cisco
Model	SIP IP Phone
Category	IP Phone
Language	English