Ubigate iBG3026 Configuration Guide/Ed.00
© SAMSUNG Electronics Co., Ltd.
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Figure 28.7 SIP Gateway-to-SIP Gateway-Call Setup and Disconnect
User A
PBX A
GWI
IP Network
GW2
PBX B
User B
1. Setup
3. Call Proceeding
9. Alerting
1-way voice path
12. Connect
13. Connect ACK
2-way voice path
19. Disconnect
20. Release
23. Release Complete
2. INVITE
5. 100 Trying
8. 180 Ringing
2-way RTP channel
11. 200 OK
14. ACK
2-way RTP channel
17. BYE
21. 200 OK
4. Setup
6. Call Proceeding
7. Alerting
1-way voice path
2-way voice path
10. Connect
15. Connect ACK
16. Disconnect
18. Release
22. Release Complete
Summary of Contents for Ubigate iBG3026
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