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 “XML Browser”.
5. Click Confirm to accept the change.
LDAP
LDAP (Lightweight Directory Access Protocol) is an application protocol for accessing and
maintaining information services of the distributed directory over an IP network. The IP phone
can be configured to interface with a corporate directory server that supports LDAP.
You can configure an Ext key as the LDAP key. If you press the LDAP key when the phone is idle,
the IP phone will download and display the LDAP entries on the LCD screen of the phone. For
more information on LDAP, refer to LDAP Phonebook on Yealink IP Phones , available online:
http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage.
To configure an Ext key as the LDAP key:
1. Click on Dsskey->Ext Key.
2. In the desired Ext key field, select LDAP from the pull-down list of Type.
3. Enter the desired value in the Label field or leave it blank.