Yealink SIP-T54S Administrator's Manual page 865

Parameters
Description:
Customizes the tone when the callee is busy.
The value format is Freq/Duration. For more information on the value format, refer to the
parameter "voice.tone.dial".
Note: It works only if the value of the parameter "voice.tone.country" is set to Custom. If
you want to disable this warning tone, set it to 0.
Web User Interface:
Settings->Tones->Busy
Phone User Interface:
None
voice.tone.congestion
Description:
Customizes the tone when the network is congested.
The value format is Freq/Duration. For more information on the value format, refer to the
parameter "voice.tone.dial".
Note: It works only if the value of the parameter "voice.tone.country" is set to Custom. If
you want to disable this warning tone, set it to 0.
Web User Interface:
Settings->Tones->Congestion
Phone User Interface:
None
voice.tone.callwaiting
Description:
Customizes the call waiting tone.
The value format is Freq/Duration. For more information on the value format, refer to the
parameter "voice.tone.dial".
Note: It works only if the value of the parameter "voice.tone.country" is set to Custom. If
you want to disable this warning tone, set it to 0.
Web User Interface:
Settings->Tones->Call Waiting
Phone User Interface:
None
Configuring Audio Features
Permitted Values
String
String
Default
Blank
Blank
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