User Guide

Yealink EXP20 User Guide
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The LCD screen prompts “Welcome Initializing…Please wait”.
The host phone and the EXP20 LCD expansion module will be reset to factory settings
successfully after startup.
Note
Reset of the EXP20 LCD expansion module can lead to resetting the host phone. And then all
custom settings on the host phone and the EXP20 LCD expansion module will be overwritten
after resetting.