Yealink SIP-T4X Administrator's Manual page 301

Format
Default Value
Range
Example
Parameter-
call_waiting.on_code
Description
Format
Default Value
Range
Example
Parameter-
call_waiting.off_code
Description
Format
Default Value
Range
Example
Parameter-
call_waiting.tone
Description
is automatically rejected by the IP phone with
a busy message while during a call.
If it is set to 1 (Enabled), the LCD screen will
present a new incoming call while during a
call.
Boolean
1
Valid values are:
0-Disabled
1-Enabled
call_waiting.enable = 1
Configuration File
<y0000000000xx>.cfg
Configures the call waiting on code to activate
the server-side call waiting feature.
String
Blank
String within 32 characters
call_waiting.on_code = *55
Configuration File
<y0000000000xx>.cfg
Configures the call waiting off code to
deactivate the server-side call waiting feature.
String
Blank
String within 32 characters
call_waiting.off_code = *56
Configuration File
<y0000000000xx>.cfg
Enables or disables the playing of a call
waiting tone when the IP phone receives an
incoming call during a call.
Appendix
285