Cisco Systems IP phone 7960 IP Phone User Manual


 
B-3
Cisco SIP IP Phone 7960 Administrator Guide
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Appendix B SIP Call Flows
Call Flow Scenarios for Successful Calls
Gateway-to Cisco SIP IP Phone—Successful Call Setup and
Disconnect
Figure B-1 illustrates a successful gateway-to-Cisco SIP IP phone call setup and
disconnect. In this scenario, the two end users are User A and User B. User A is
located at PBX A. PBX A is connected to Gateway 1 (SIP Gateway) via a T1/E1.
User B is located at a Cisco SIP IP phone. Gateway 1 is connected to the Cisco
SIP IP phone over an IP network.
The call flow is as follows:
1.
User A calls User B.
2.
User B answers the call.
3.
User B hangs up.