Esse-ti GSM400, User Manual, Page: 46 / 56

Page 46
READING THE BATTERY STATUS
If the low-battery check has been previously enabled, it is possible to
check the battery status.
(confirm)

Lift the handset and dial: **91#.

After the confirmation tone hang up.
After receiving the request, GSM400 will send an SMS to the number
programmed to be alerted.
The outgoing message text is the following: “
Carica batteria (Battery
charge): x ”, where x is the value corresponding to the minimum number
of operating hours guaranteed by the battery in idle mode, according to
the table at paragraph “Low-battery check”.
The request will not be accepted (an error tone will be received) if the
low-battery check is disabled, if the notification number to be alerted has
not been previously entered or if the GSM400 is not correctly registered
to the GSM network.