VTech 15100 - BASE SETTINGS; Ringer Volume and Recall Time

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RINGER VOLUME
RECALL (fLAsH) TIME

Please contact your local service provider for the correct
settings.
Press
when the handset is not in use.
Press
or to scroll to BS SETTINGS.
Press
and or to scroll to FLASH TIME.
Press
and or 
(SHORT, MEDIUM, LONG).
Press

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BAsE sETTINGs