Appendix B SIP Call Flows
Call Flow Scenarios for Successful Calls
Figure B-1 Gateway-to-Cisco SIP IP Phone—Successful Setup and Disconnect
|
|
| SIP IP Phone |
User A PBX A | GW1 | IP Network | User B |
|
|
| IP |
1. Setup
3. Call Proceeding
6. Alerting
8.Connect
9.Connect ACK
12.Disconnect
13.Release
15. Release Complete
2.INVITE
4.100 Trying
5.180 Ringing
7.200 OK
10. ACK
11.BYE
14.200 OK
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