Cisco 7960 Administrator's Manual page 153
Sip ip phone
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Also See for 7960:
- User manual (186 pages) ,
- Administration manual (150 pages) ,
- Getting started (50 pages)
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Appendix B
SIP Call Flows
Figure B-10 Cisco SIP IP Phone-to-Cisco SIP IP Phone Network Call Forwarding (Busy)
IP
SIP IP
Phone
User A
1. INVITE B
10. 200 OK
11. ACK
2-way RTP channel
78-10497-02
IP Network
Proxy
Server
2. INVITE B
3. 300 Multiple Choices
4. INVITE B
5. 486 Busy Here
6. ACK
7. INVITE C
8. 180 Ringing
9. 200 OK
12. ACK
Call Flow Scenarios for Successful Calls
SIP IP
Redirect
Phone
Server
User B
Cisco SIP IP Phone 7960 Administrator Guide
IP
IP
SIP IP
Phone
User C
B-45
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