Administrator’s Guide for VP530 IP
Video
Phone
308
5.
User A transfers the call to User C.
Call is established between User B and User C.
User A
Proxy Server
User B
F1. INVITE B
F4. 180 Ringing
F6. 200 OK
F7. ACK
2-way RTP channel established
F9. INVITE B
(
sendonly
)
F12. 200 OK
F13. ACK
F15. INVITE C
F17. 180 Ringing
F19. 200 OK
F21. ACK
F23. REFER
F24. 202 Accepted
User C
F2. INVITE B
F3. 180 Ringing
F5. 200 OK
F8. ACK
F10. INVITE B
(
sendonly
)
F11. 200 OK
F14. ACK
F16. INVITE C
F18. 180 Ringing
F20. 200 OK
F22. ACK
2-way RTP channel established
F25. REFER
F26. 202 Accepted
F31. BYE
F32. BYE
F33. 200 OK
F34. 200 OK
2-way RTP channel established
Содержание VP530 IP
Страница 1: ......
Страница 4: ......
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Страница 111: ...Configuring Basic Features 99...
Страница 153: ...Configuring Advanced Features 141...
Страница 171: ...Configuring Security Features 159...
Страница 182: ...Administrator s Guide for VP530 IP Video Phone 170 Phonebook on page 266...
Страница 183: ...Resource Files 171...
Страница 194: ...Administrator s Guide for VP530 IP Video Phone 182 3 Click OK to confirm the resetting...
Страница 195: ...Troubleshooting 183...
Страница 344: ...Administrator s Guide for VP530 IP Video Phone 332...