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
850
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
features.headset_training
0 or 1
0
Description:
Enables or disables dual headset feature.
0-Disabled
1-Enabled
If it is set to 1 (Enabled), users can use two headsets on one phone. When the IP phone
joins in a call, the users with the headset connected to the headset jack have a full-duplex
conversation, while the users with the headset connected to the handset jack are only
allowed to listen to.
Note: It works only if the value of the parameter “features.headset_mode.enable” is set to
1 (Enabled). It is not applicable to CP860/CP920 IP phones.
Web User Interface:
Features->General Information->Dual Headset
Phone User Interface:
None
To configure dual headset via web user interface:
1. Click on Features->General Information.
2. Select the desired value from the pull-down list of Dual Headset.
3. Click Confirm to accept the change.

Yealink SIP-T21 E2 Specifications

General

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