Yealink SIP-T21 E2 Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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Parameters
Permitted Values
Default
commas. (e.g., 250/200,0/1000,200+300/500,200+500+800+1500/1000).
If you want the IP phone to play tones once, add an exclamation mark “!” before tones
(e.g., !250/200,0/1000,200+300/500,200+500+800+1500/1000).
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->Dial
Phone User Interface:
None
voice.tone.secondary_dial
String
350+440/300
0
Description:
Customizes the secondary dial 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->Secondary Dial
Phone User Interface:
None
voice.tone.ring
String
Blank
Description:
Customizes the ringback 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->Ring Back
Phone User Interface:
None
voice.tone.busy
String
Blank

Yealink SIP-T21 E2 Specifications

General

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