Yealink SIP-T21 E2 Administrator's Guide

Configuring Audio Features
911
Parameters
Permitted
Values
Default
a critical alert quality report to the central report collector.
For example, If it is set to 500, when the value of one way delay computed by the phone is
greater than or equal to 500, the phone will send a critical alert quality report to the central
report collector; when the value of one way delay computed by the phone is less than 500,
the phone will not send a critical alert quality report to the central report collector.
If it is set to blank, critical alerts are not generated due to one way delay. One-way delay
includes both network delay and end system delay.
Web User Interface:
Settings->Voice Monitoring->Critical threshold for Delay
Phone User Interface:
None
phone_setting.vq_rtcpxr.states_show_on_web.enable
0 or 1
0
Description:
Enables or disables the voice quality data of the last call to be displayed on web interface at
path Status->RTP Status.
0-Disabled
1-Enabled
Web User Interface:
Settings->Voice Monitoring->Display Report options on Web
Phone User Interface:
None
phone_setting.vq_rtcpxr.states_show_on_gui.enable
0 or 1
0
Description:
Enables or disables the voice quality data of the last call or current call to be displayed on
the LCD screen. You can view the voice quality data of the last call on the phone at the path
Menu->Status->More->RTP (RTP Status). You can view the voice quality data of the
current call by pressing RTP/RTP Status soft key during a call.
0-Disabled
1-Enabled
Web User Interface:
Settings->Voice Monitoring->Display Report options on phone
Phone User Interface:
None

Yealink SIP-T21 E2 Specifications

General

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