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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Parameter
Permitted Values
Default
1-Enabled
If it is set to 0 (Disabled), the letter E will be transmitted as DTMF D.
If it is set to 1 (Enabled), the letter E will be transmitted as DTMF Flash.
Note: If you change this parameter, the IP phone will reboot to make the change take
effect.
Web User Interface:
None
Phone User Interface:
None
Play Local DTMF Tone
Play local DTMF tone allows IP phones to play a local DTMF tone during an active call. If this
feature is enabled, you can hear the DTMF tone when pressing the IP phone’s keypad during a
call.
Procedure
Configuration changes can be performed using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure play local DTMF tone.
Parameter:
features.play_local_dtmf_tone_enable
Web User Interface
Configure play local DTMF tone.
Navigate to:
http://<phoneIPAddress>/servlet?p=f
eatures-general&q=load
Details of Configuration Parameter:
Parameter
Permitted Values
Default
features.play_local_dtmf_tone_enable
0 or 1
1
Description:
Enables or disables the IP phone to play a local DTMF tone.
0-Disabled
1-Enabled
If it is set to 1 (Enabled), you can hear the DTMF tone when pressing the IP phone’s keypad

Yealink SIP-T21 E2 Specifications

General

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