User Guide

Yealink EXP40 User Guide
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The LCD screen of the host phone prompts the following warning:
3. Press the OK soft key on the host phone.
The LCD screen of the host phone prompts “Welcom Initializing…Please wait”.
The host phone and the EXP40 expansion module will be reset to factory settings
sucessfully after startup.
Note
For more information on resetting the phone, refer to the Troubleshooting section of Yealink
phone-specific user guide, available online:
http://support.yealink.com/documentFront/forwardToDocumentFrontDisplayPage.
Reset of the EXP40 expansion module can lead to resetting the host phone. And then all custom
settings on the host phone and the EXP40 expansion module will be overwritten after resetting.