Yealink EXP40 User Manual
Page 19
Configuration
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If you leave this field blank, the LCD screen will display the default label “Call
Return”.
4. Click Confirm to accept the change.
You can configure a DSS key as the SMS key. Then you can access the text message
interface more quickly and easily by pressing the SMS key.
To configure a DSS key as the SMS key:
1. Click on DSSKey->Ext Key.
2. In the desired DSS key field, select SMS from the pull-down list of Type.
3. Enter the desired value in the Label field or leave it blank.