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coverage of your home GSM / GPRS
network. You probably are in the coverage
of another GSM /GPRS network but you
are not allowed to be registered to the
network.
If any tone is not generated when you
press a keypad…
You need to check the quick silence
mode setting. If you can find
icon on
the top of the main display screen it is the
quick silence mode. By pressing and
holding [Space] key on the idle screen,
you can switch it off. You need to check
the Key Tone Type of Sound Setting menu.
You need to check Key Tone Volume of
the profile option that you have set on
Profiles menu.
If an audible alert is not made when a call
is received…
You need to check the quick silence
mode setting. If you can find
icon on
top of the main display screen it is the
Содержание 501S
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