User guide

Yealink IP Phones Auto Provisioning Guide
252
Parameter
Permitted
Values
Descriptions
Web Setting Path
features.dtmf.transfer
String within
32 characters
It configures the DTMF digits to be transmitted
to perform call transfer. Valid values are: 0-9,
*, # and A-D.
Note: It works only if the value of the
parameter ―features.dtmf.replace_tran‖ is set
to 1 (Enabled).
The default value is blank.
Features->General Information->Tran
Send DTMF
features.dtmf.volume
Integer from
-33 to 0
It configures the frequency level of DTMF
digits (in db).
The default value is -10.
features.dtmf.duration
Integer from 0
o 300
It configures the duration time (in
milliseconds) for DTMF.
The default value is 100.
features.headset_prior
0 or 1
It enables or disables headset prior feature.
0-Disabled
1-Enabled
If it is set to 1 (enabled), the headset mode
will not be deactivated until you press the
HEADSET key again. You need to press the
HEADSET key to activate the headset mode in
advance.
Features->General Information->
Headset Prior