Appendix B SIP Call Flows
Call Flow Scenarios for Successful Calls
Figure B-9 Cisco SIP IP Phone-to-Cisco SIP IP Phone Network Call Forwarding (Unconditional)
IP Network
IP
IP
IP
SIP IP | Proxy | Redirect | SIP IP | SIP IP |
Phone | Server | Server | Phone | Phone |
User A |
|
| User B | User C |
1. INVITE B
7.200 OK
8.ACK
2.INVITE B
3.302 Moved Temporarily
4.INVITE C
5.180 Ringing
6.200 OK
9.ACK
41471
| Cisco SIP IP Phone 7960 Administrator Guide |
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