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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LED Status
Description
Off
The monitored user is idle.
The monitored user does not exist.
Line Key/Expansion Module Key LED (configured as a BLF key or a BLF List key and BLF LED
Mode is set to 4. This mode is specifically designed for the Genband server.)
LED Status
Description
Solid green
The monitored user is talking.
Slow-flashing green (1s)
The monitored user does not exist.
Off
The monitored user is idle.
Procedure
BLF LED mode can be configured using the following methods.
Central
Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure BLF LED mode.
Parameter:
features.blf_led_mode
Web User Interface
Configure BLF LED mode.
Navigate to:
http://<phoneIPAddress>/servlet?p=f
eatures-general&q=load
Details of Configuration Parameters:
Parameters
Permitted Values
Default
features.blf_led_mode
0, 1, 2, 3 or 4
0
Description:
Configures BLF LED mode and provides five kinds of definition for the BLF/BLF List key LED
status.
Note: It is not applicable to SIP-T19(P) E2/CP860/CP920 IP phones. For the Genband
server, you can set the value of this parameter to 4.
Web User Interface:
Features->General Information->BLF LED Mode
Phone User Interface:
None

Yealink SIP-T21 E2 Specifications

General

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