Appendix A SIP Compliance with RFC-2543 Information
SIP Session Description Protocol (SDP) Usage
A-12
Cisco SIP IP Phone 7960 Administrator Guide
78-10497-02
SIP Session Description Protocol (SDP) Usage
Server
No
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/creator and session
identifier
Yes
a—Session name
Yes
c—Connection information
Yes
m—Media name and transport
address
Yes
Header Field
Supported?