Yealink SIP-T21 E2 Administrator's Guide

Configuring Audio Features
839
Parameters
Permitted Values
Default
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
String
Blank
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
String
Blank
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

Yealink SIP-T21 E2 Specifications

General

Brand	Yealink
Model	SIP-T21 E2
Category	IP Phone
Language	English