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No number is displayed when the telephone rings
Please contact your telephone network provider to obtain
the Caller display service or ensure that it has been
activated if you have already subscribed.
Even if you have subscribed to Caller display, if the caller
does not want to show their number, the display will show
"Private number", or if the call is from an area not providing
caller display, "Unavailable number" will be displayed.
It could be a call from a private telephone exchange. Caller
display may not work properly if this is the case.
No response on LCD display
If you have experienced a power failure the batteries may
become weak. If the power is restored and the LCD
display still does not respond then replace the batteries
with new ones.
Flashing light on the top right hand corner of the
screen or the light on the top right hand corner of the
screen stays on
Review the Call log.
Please note: If you are still having trouble please contact
the Sonic Alert helpline on 1-888-864-2446.
TROUBLESHOOTING