User Guide

Configuring the Yealink EXP40 Expansion Module
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If you leave this field blank, the LCD screen of the EXP40 expansion module will display the
default label “URL”.
5. Click Confirm to accept the change.
Phone Lock
You can configure an Ext key as the phone lock key. Then you can press the phone lock key to
immediately lock the keypad of your phone instead of long pressing the pound key.
To configure an Ext key as the phone lock key:
1. Click on Dsskey->Ext Key.
2. In the desired Ext key field, select Phone Lock from the pull-down list of Type.
3. Enter the desired value in the Label field or leave it blank.