User Manual

Appendix
389
 draft-ietf-bliss-shared-appearances-15.txt—Shared Appearances of a Session Initiation
Protocol (SIP) Address of Record (AOR)
To find the applicable Request for Comments (RFC) document, go to
http://www.ietf.org/rfc.html and enter the RFC number.
SIP Request
The following SIP request messages are supported:
Method
Supported
Notes
REGISTER
Yes
INVITE
Yes
Yealink Skype for Business
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
NOTIFY
Yes
REFER
Yes
PRACK
Yes
INFO
Yes
MESSAGE
Yes
UPDATE
Yes
PUBLISH
Yes