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Appendix B SIP Call Flows
Call Flow Scenarios for Successful Calls
B-16
Cisco SIP IP Phone 7960 Administrator Guide
78-10497-02
Cisco SIP IP Phone-to-Cisco SIP IP Phone Simple Call Hold
Figure B-4 illustrates a successful call between Cisco SIP IP phones in which one
of the participants places the other on hold and then returns to the call. In this call
flow scenario, the two end users are User A and User B. User A and User B are
both using Cisco SIP IP phones, which are connected via an IP network.
The call flow scenario is as follows:
1.
User A calls User B.
2.
User B answers the call.
3.
User B places User A on hold.
4.
User B takes User A off hold.
5.
The call continues.