Yealink SIP-T2 SERIES Administrator's Manual page 318

Administrator's Guide for SIP-T2 Series/T19(P) E2/T4 Series/CP860 IP Phones
Details of Configuration Parameters:
call_waiting.enable
Description:
Enables or disables call waiting feature.
0-Disabled
1-Enabled
If it is set to 0 (Disabled), a new incoming call 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.
Web User Interface:
Features->General Information->Call Waiting
Phone User Interface:
Menu->Features->Call Waiting->Call Waiting
call_waiting.tone
Description:
Enables or disables the IP phone to play the call waiting tone when the IP phone
receives an incoming call during a call
0-Disabled
1-Enabled
If it is set to 1 (Enabled), the IP phone will perform an audible indicator when
receiving a new incoming call during a call.
Note: It works only if the value of the parameter ―call_waiting.enable‖ is set to 1
(Enabled).
Web User Interface:
Features->Audio->Call Waiting Tone
Phone User Interface:
Menu->Features->Call Waiting->Play Tone
call_waiting.on_code
296
Parameters Permitted Values
0 or 1
0 or 1
.
String within 32 characters
Default
1
1
Blank