Yealink SIP-T4X Administrator's Manual page 298

Administrator's Guide for SIP-T4X IP Phones
Parameter-
features.hotline_number
Description
Format
Default Value
Range
Example
Parameter-
features.hotline_delay
Description
Format
Default Value
Range
Example
282
Configuration File
<y0000000000xx>.cfg
Configures the hotline number.
It specifies a number that the IP phone
automatically dials out when lifting the
handset, pressing the speakerphone key or
the line key. Leaving it blank disables hotline
feature.
String
Blank
String within 32 characters
features.hotline_number = 3601
Configuration File
<y0000000000xx>.cfg
Configures the waiting time (in seconds) the IP
phone automatically dials out the hotline
number.
If it is set to 0, the IP phone immediately will
dial out the preconfigured hotline number
when you lift the handset, press the
speakerphone key or press the line key.
If it is set to a value greater than 0, the IP
phone will wait the specified seconds before
dialing out the predefined hotline number
when you lift the handset, press the
speakerphone key or the line key.
Integer
4
0 to 10
features.hotline_delay = 4