Yealink SIP-T21 E2

Configuring Basic Features
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8. Select the desired value from the pull-down list of MissCall Power Light Flash.
9. Click Confirm to accept the change.
Notification Popups
Notification popups feature allows the IP phone to display the pop-up message box when it
misses a call, forwards an incoming call to other party or receives a new voice mail or a new
text message.
The following shows an example of receiving a new voice mail:
Procedure
Notification popups can be configured using the following methods.
Central
Provisioning
(Configuration File)
<y0000000000xx>.
cfg
Configure notification popups.
Parameters:
features.voice_mail_popup.enable
features.missed_call_popup.enable