User Guide

Yealink EXP40 User Guide
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If you leave this field blank, the LCD screen of the EXP40 expansion module will display the
default label “Zero Touch”.
4. Click Confirm to accept the change.
URL
You can configure an Ext key as the URL key. If you press the URL key, the phone will send HTTP
requests to a web server.
To configure an Ext key as the URL key:
1. Click on Dsskey->Ext Key.
2. In the desired Ext key field, select URL from the pull-down list of Type.
3. Enter the URL of the web server you want to access in the Value field (e.g.,
http://192.168.0.1).
4. Enter the desired value in the Label field or leave it blank.