Specifications

Administrator’s Guide for SIP-T46G IP Phone
366
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
The Yealink SIP-T46G IP
phones support mid-call
changes such as putting 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
The following SIP request headers are supported:
Method
Supported
Notes
Accept
Yes
Alert-Info
Yes
Allow
Yes