Ubigate iBG2016 Configuration Guide/Ed.00
© SAMSUNG Electronics Co., Ltd.
345
SIP Call Flows
This section describes the basic SIP call flow in an SIP gateway.
SIP Gateway to SIP Gateway-Call Setup and Disconnect
Figure 28.7 shows a successful gateway-to-gateway call setup and disconnect.
The two end users are User A and User B. User A is located at PBX A, which
is connected to SIP gateway 1 via a T1/E1. User B is located at PBX B, which
is connected to SIP gateway 2 via a T1/E1. Table 28.1 briefly describes the
messages used in the call flow.
Figure 3.7 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 iBG2016
Page 1: ......
Page 16: ...INTRODUCTION XIV SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 34: ......
Page 62: ...CHAPTER 4 System Logging 28 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 70: ......
Page 108: ......
Page 140: ...CHAPTER 4 RIP 104 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 156: ...CHAPTER 6 BGP 120 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 180: ...CHAPTER 8 VRRP 144 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 264: ...CHAPTER 10 QoS 228 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 272: ......
Page 298: ...CHAPTER 3 Firewall NAT 248 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 356: ...CHAPTER 5 IPSEC 306 SAMSUNG Electronics Co Ltd This page is intentionally left blank ...
Page 358: ......
Page 744: ...EQBD 000071 Ed 00 ...