C-9
SIP IP Phone to SIP IP Phone: Call Setup and Disconnect
Figure C-5. Call Flow Diagram: SIP Phone to SIP Phone — Diagram 1
SIP Phone UA Marshal
1. INVITE
2. 100
Redirect Server
3. INVITE
4. 302
5. ACK
6. INVITE
7. 302
8. ACK
SIP Phone
9. INVITE
10. 100
11. 180
12. 180
13. 200
14. 200
15. ACK