Cat B25 Phone User Manual 23
Standby time is reduced Standby time is related to the system
setting of network, maybe the phone is
used in an area with poor signal. Where
there is poor signal, the phone will
constantly search for base station signal
and battery will run down, so the standby
time is reduced.
Try replacing battery if occurring in good
signal area.
SIM card error Check SIM card contacts - please use a
clean cloth to wipe the metal contact point
of SIM card;
Check SIM card is properly installed;
SIM card is damaged, please contact with
your network service provider.
Calls cannot be dialed Make sure the Send key is pressed after
dialing number
Make sure call credit is sufficient;
Please make sure if SIM card is valid;
Please make sure call barring function is
enabled;
Make sure fixed dialing function is not
restricting calls;
The caller cannot contact you Please check the phone is powered on and
connected to a network;
Make sure call credit is sufficient;
Please make sure if SIM card is valid;
Please make sure call barring function is
enabled;
Make sure fixed dialing function is not
restricting calls;
Battery will not charge Poor contact, please check the plug
connection;
Ensure environmental conditions within
temperature range -10 to 55ºC
Battery or charger may be damaged,
please replace it;
Some functions cannot be set Wrong operation;
The network provider does not support
this function or you have not activated
this function.
