Administrator’s Guide for SIP-T2xP and SIP-T19P IP Phones
468
4.
User C answers the call.
Call is established between User A and User C.
User A
Proxy Server
User B
User C
F1. INVITE B
F2. INVITE B
F3. 302 Move Temporarily
F6. ACK
F7. INVITE C
F8. INVITE C
F9. 180 Ringing
F10. 180 Ringing
F11. 200 OK
F12. 200 OK
F13. ACK
F14. ACK
F4. ACK
2-way RTP channel established
F5. 302 Move Temporarily
Summary of Contents for Yealink SIP-T28P
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Page 28: ...Administrator s Guide for SIP T2xP and SIP T19P IP Phones 12 ...
Page 76: ...Administrator s Guide for SIP T2xP and SIP T19P IP Phones 60 ...
Page 226: ...Administrator s Guide for SIP T2xP and SIP T19P IP Phones 210 ...
Page 238: ...Administrator s Guide for SIP T2xP and SIP T19P IP Phones 222 ...
Page 253: ...Configuring Security Features 237 ...
Page 265: ...Resource Files 249 ...
Page 279: ...Troubleshooting 263 ...