Appendix B SIP Call Flows
Call Flow Scenarios for Successful Calls
B-8
Cisco SIP IP Phone 7960 Administrator Guide
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Figure B-2
Gateway-to-Cisco SIP IP Phone Call—Successful Call Setup and Call Hold
IP
SIP IP Phone
User B
3. Call Proceeding
6. Alerting
8. Connect
10. Connect ACK
1. Setup
PBX A
User A
GW1
IP Network
4. 100 Trying
13. ACK
16. ACK
11. INVITE (c=IN IP4 0.0.0.0)
14. INVITE (c=IN IP4 IP-User B)
5. 180 Ringing
7. 200 OK
2. INVITE
2-way RTP channel
No RTP packets being sent
2-way VP
2-way voice path
2-way voice path
12. 200 OK
9. ACK
15. 200 OK
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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 ...