Which SIP request is used by Cisco Unified Communications Manager to signal DND status
changes to a Cisco 9971 IP Phone?
A.
OPTIONS
B.
NOTIFY
C.
INFO
D.
REFER
E.
UPDATE
Which SIP request is used by Cisco Unified Communications Manager to signal DND status changes to a Cisco 9971 IP Phone?
Which SIP request is used by Cisco Unified Communications Manager to signal DND status
changes to a Cisco 9971 IP Phone?