User guide

Appendix
151
Parameter
Permitted
Values
Descriptions
Web Setting Path
local conference call.
0-Disabled
1-Enabled
If it is set to 1 (Enabled), the other two parties
remain connected when the conference
initiator drops the conference call.
The default value is 0.
Note: It is only applicable to the local
conference.
features.transfer_type
0 or 1
It enables or disables the IP phone to transfer
the call by a special INVITE message.
0-Disabled (Refer message)
1-Enabled (Specially for the Panasonic
server)
voice.vad
0 or 1
It enables or disables VAD (Voice Activity
Detection) feature.
0-Disbaled
1-Enabled
The default value is 0.
For more information on VAD, refer to Yealink
IP Phones Administrator Guide.
Settings->Voice->Echo Cancellation
->VAD