Glensound Electronics GS-MPI004, Руководство пользователя

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Problem Cause Solution
Red “ON-HOOK” LED starts to flash
after GSM registration is complete, or
when phone goes off-hook
1) Battery voltage is sufficiently low that
the device will not operate correctly, as
indicated by state of “
BATT LOW”
LED.
2) Signal strength is too low.
3) Unsuitable GSM antenna is fitted.
Change batteries, or connect external
DC supply.
Move unit within range of a mobile
phone mast.
Fit a suitable GSM antenna.
Phone returns to on-hook state after
dialling.
1) Call failed (possibly invalid number,
remote phone line busy, call cancelled
by remote phone, etc.)
2) No credit left on SIM card.
Try again later.
Put SIM card into an ordinary mobile
phone and top-up credit.
Call fails when attempting to dial phone
number stored in memory slot. Selected memory slot does not contain a
valid phone number. Store a valid phone number in the slot,
or select another slot.
Incoming call appears to fail after fixed
number of rings. GSM network is activating a remote
answering service.
Contact GSM network provider and
request remote answering service be
disabled.
Phantom-powered microphone does not
work when connected to device. Phantom power is not available on this
device.
Use a dynamic microphone instead.
GS-MPI004 / 5 Manual – Issue 2 12