Using Call Recording Feature on Yealink SIP-T2XP Phones
2
2.2
How the SIP INFO works
2.2.1
Start a recording
Assume that you have DSS Key 1 configured as above, during an active call, if you press this button for
the first time, the phone will send out a SIP INFO to the PBX. The SIP message is like:
Receiving such a message, the certain supporting server will know to start recording.
2.2.2
Stop the recording
To stop recording, just to press the same button for the second time, with which the phone will send
the SIP INFO like below: