Yealink SIP-T2XP Administrator's Manual page 454

Administrator's Guide for SIP-T2xP and SIP-T19P IP Phones
Step
User B
200 OK—User B to Proxy
Server
F7
200 OK—Proxy Server to User
A
F8
The following figure illustrates a successful call setup and call hold. In this scenario, the
two end users are User A and User B. User A and User B are located at Yealink SIP IP
phones.
The call flow scenario is as follows:
1. User A calls User B.
2. User B answers the call.
438
Action
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.
Description