User Manual

Appendix
425
 RFC 4568—Session Description Protocol (SDP) Security Descriptions for Media
Streams
 RFC 4575—A SIP Event Package for Conference State
 RFC 4579—SIP Call Control - Conferencing for User Agents
 RFC 4662—A SIP Event Notification Extension for Resource Lists
 RFC 5009—P-Early-Media Header
 RFC 5079—Rejecting Anonymous Requests in SIP
 RFC 5359—Session Initiation Protocol Service Examples
 RFC 5589—Session Initiation Protocol (SIP) Call Control - Transfer
 draft-levy-sip-diversion-04.txt—Diversion Indication in SIP
 draft-ietf-sip-cc-transfer-05.txt—SIP Call Control - Transfer
 draft-anil-sipping-bla-02.txt—Implementing Bridged Line Appearances (BLA) Using
Session Initiation Protocol (SIP)
 draft-ietf-sip-privacy-04.txt—SIP Extensions for Network-Asserted Caller Identity
and Privacy within Trusted Networks
 draft-ietf-sipping-cc-conferencing-03.txt—SIP Call Control - Conferencing for User
Agents
To find the applicable Request for Comments (RFC) document, go to
http://www.ietf.org/rfc.html and enter the RFC number.
The following SIP request messages are supported:
Method
Supported
Notes
REGISTER
Yes
INVITE
Yes
Yealink IP phones support
mid-call changes such as
placing a call on hold as
signaled by a new INVITE
that contains an existing
Call-ID.
ACK
Yes
CANCEL
Yes
BYE
Yes
OPTIONS
Yes
SUBSCRIBE
Yes