GB.90
Phone
Description Causes Solutions
No sounds or ringtone can be heard. The mobile phone is not connected to the
system.
The volume is set to minimum or mute.
Ensure that the mobile phone is con-
nected to the system.
Increase the ringtone volume or deacti-
vate the mute function.
Impossible to make a call. The mobile phone is not connected to the
system.
The phone keypad has been locked.
Ensure that the mobile phone is con-
nected to the system.
Unlock the phone keypad.
OPERATING FAULTS (3/3)
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