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Administrator’s Guide for VP530 IP
Video
Phone
304
User A
Proxy Server
User B
F1. INVITE B
F4. 180 Ringing
F6. 200 OK
F7. ACK
2-way RTP channel established
F23. 180 Ringing
F11. REFER
F12. 202 Accepted
F26. 200 OK
F2. INVITE B
F3. 180 Ringing
F5. 200 OK
F8. ACK
F22. INVITE C
F19. 200 OK
F27. ACK
F18. BYE
2-way RTP channel established
F9. REFER
F10. 202 Accepted
F17. BYE
F20. 200 OK
F21. INVITE C
F24. 180 Ringing
F25. 200 OK
F28. ACK
User C
Summary of Contents for VP530 IP
Page 1: ......
Page 4: ......
Page 12: ......
Page 111: ...Configuring Basic Features 99...
Page 153: ...Configuring Advanced Features 141...
Page 171: ...Configuring Security Features 159...
Page 182: ...Administrator s Guide for VP530 IP Video Phone 170 Phonebook on page 266...
Page 183: ...Resource Files 171...
Page 194: ...Administrator s Guide for VP530 IP Video Phone 182 3 Click OK to confirm the resetting...
Page 195: ...Troubleshooting 183...
Page 344: ...Administrator s Guide for VP530 IP Video Phone 332...