Appendix B SIP Call Flows
Call Flow Scenarios for Successful Calls
B-26
Cisco SIP IP Phone 7960 Administrator Guide
78-10497-02
Figure B-6
Cisco SIP IP Phone-to-Cisco SIP IP Phone Call Waiting
IP
IP
IP
2. 180 Ringing
3. 200 OK
2-way RTP channel
A is put on hold. The RTP channel between A and B is torn down.
B has disconnected from A, but the call with C (on hold) remains.
4. ACK
C is taken off hold. The RTP
channel between B and C is
reestablished.
2-way RTP channel
C is on hold. The RTP channel
between B and C is torn down.
A is taken off hold. The RTP channel between A and B is reestablished.
7. INVITE (c=IN IP4 0.0.0.0)
8. 200 OK
9. ACK
15. INVITE (c=IN IP4 IP-User B)
16. 200 OK
17. ACK
18. BYE
19. 200 OK
1. INVITE B
11. ACK
13. 200 OK
10. 200 OK
21. 200 OK
20. INVITE (c=IN IP4 IP-User B)
22. ACK
14. ACK
12. INVITE (c=IN IP4 0.0.0.0)
5. INVITE C
6. 180 Ringing
IP Network
SIP IP
Phone User A
SIP IP
Phone User B
SIP IP
Phone
User C
41467
Содержание Cisco 7960
Страница 8: ...Contents viii Cisco SIP IP Phone 7960 Administrator Guide 78 10497 02 G L O S S A R Y I N D E X ...
Страница 18: ...About This Guide Obtaining Technical Assistance xviii Cisco SIP IP Phone 7960 Administrator Guide 78 10497 02 ...
Страница 192: ...Appendix D Translated Safety Warnings D 8 Cisco SIP IP Phone 7960 Administrator Guide 78 10497 02 ...
Страница 200: ...Glossary 8 Cisco SIP IP Phone 7960 Administrator Guide 78 10497 02 ...