Yealink SIP T2 Series Provisioning Manual page 106

Yealink IP Phones Auto Provisioning Guide
Parameter
features.busy_tone_delay
features.send_pound_key
100
Permitted
Descriptions
Values
a call, the users with the headset connected to the
headset jack have a full-duplex conversation,
while the users with the headset connected to the
handset jack are only allowed to listen to.
The default value is 0.
It configures the duration time (in seconds) for the
busy tone. When one party releases the call, a
busy tone is audible to the other party indicating
that the call connection breaks.
0-0s
0, 3 or 5
3-3s
5-5s
If it is set to 3 (3s), a busy tone is audible for 3
seconds on the IP phone.
The default value is 0.
It enables or disables the IP phone to not send any
pound key when pressing double #.
0-Disabled (Send one pound key by pressing
0 or 1
double #)
1-Enabled (Do not send any pound key when
pressing double #)
Web Setting Path
Features->General
Information->Busy Tone Delay
(Seconds)
Features->General
Information->Send Pound Key