Yealink SIP-T2xP Administrator's Manual page 336

Administrator's Guide for SIP-T2xP and SIP-T19P IP Phones
Default Value
Range
Example
Parameter-
features.normal_refuse_code
Description
Format
Default Value
Range
Example
Parameter-
phone_setting.is_deal180
Description
320
0
Valid values are:
0-0s
3-3s
5-5s
features.busy_tone_delay = 0
Configuration File
<y0000000000xx>.cfg
Configures a return code and reason of SIP
response messages when the phone rejects
an incoming call. A specific reason is
displayed on the caller's phone LCD screen.
If it is set to 486 (Busy here), the caller's
phone LCD screen will display the message
"Busy here" when the callee rejects the
incoming call.
Integer
486
Valid values are:
404-No Found
480-Temporarily not available
486-Busy here
features.normal_refuse_code = 486
Configuration File
<y0000000000xx>.cfg
Enables or disables the IP phone to deal with
the 180 SIP message received after the 183
SIP message.
If it is set to 1 (Enabled), the IP phone will
resume and play the local ringback tone
upon a subsequent 180 message received.