Yealink SIP-T46G Administrator's Manual page 392

Administrator's Guide for SIP-T46G IP Phone
380
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Step Action
User B
200 OK—User B to Proxy
Server
F7
200 OK—Proxy Server to User
A
F8
Description
User A wants to disconnect the call.
User B sends a SIP 200 OK response to
the proxy server. The SIP 200 OK
response indicates that User B has
received the CANCEL request.
The proxy server forwards the SIP 200
OK response to notify User A that the
CANCEL request has been processed
successfully.