Yealink SIP-T2XP Administrator's Manual page 304

Administrator's Guide for SIP-T2xP IP Phones
Busy Tone Delay
Parameter-
features.busy_tone_delay
Description
Format
Default Value
Range
Example
Return Code When Refuse
Parameter-
features.normal_refuse_code
Description
Format
Default Value
Range
288
Configuration File
<y0000000000xx>.cfg
Configures a period of time (in seconds) for
which the busy tone is audible on the IP
phone.
When one party releases the call, a busy tone
is audible to the other party indicating that the
call connection breaks.
If set to 3 (3s), a busy tone is audible for 3
seconds on the IP phone.
Integer
0
Valid values are:
0-0s
3-3s
5-5s
features.busy_tone_delay = 0
Configuration File
<y0000000000xx>.cfg
Configures return codes and messages
when rejecting an incoming call. A specific
return message is displayed on the caller's
phone LCD screen.
If set to 486 (Busy here), the caller's phone
LCD screen displays the message "Busy
here" when the callee rejects the incoming
call.
Integer
486
Valid values are:
404-No Found
480-Temporarily not available