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-Ensure the number is entered as you would normally dial it from another phone.
-For US customers, ensure the numbers have been entered with a leading 1. If this does not work,
try again without the leading 1.
Q. There is no audio from the gate, but the person at the gate can hear ok.
A. This can be due to low reception or excessively long power cables.
-Check reception level by *20#.
-Change SIM card if necessary to another network which may have better coverage.
-Purchase a high gain antenna.
This may also be caused by a defective microphone, water on a microphone from a sprinkler for
example, or dirt/insects blocking the microphone hole. If reception is optimum and the problem
persists, contact your supplier or installer.
Q. The audio quality that can be heard on the remote telephone is poor or humming
(buzzing).
A. A small amount of GSM buzz can be considered normal on GSM intercoms, but not so much
that causes inability to hear the person speaking. This is a symptom of poor reception. Try above
steps on checking and improving reception. Consider fitting an external high gain antenna.
Q. The trigger keys do not work when the intercom calls a phone.
A. Check if you can hear the relay clicking at the gate when the keys are pressed during a call. If it
can be heard, then the system is working, check wiring between the relay and the lock or gate
panel. If the relays do not make a clicking sound, then check this feature on a different mobile cell
phone or landline. If it works on a different phone, check the settings on the phone in question
under DTMF tones.
Failure of DTMF tones to operate correctly is also a symptom of low reception or insufficient
power cabling. Check steps above on improving reception or addressing the power problem.
-Also check that the relays are not already latched with the *22# command. If they are latched,
they need unlatched before the trigger keys will work.
-Sometimes excessively long power cables or thin power cables can cause this problem. Prove it
by connecting a temporary extension lead and the power supply directly to the unit.
Q. The system was operating the gates fine, but now it will not trigger the gates.
99% of the time, this is cause by the user accidentally latching the relay. This latches the output
relay permanently on. Send the intercom the following SMS *22#. The intercom should reply with
a message detailing the relay status.. If it has been latched
, then the message will state “the relay
is ON”. In this case refer to the user guide to read how to unlatch it again.
Q. The unit no longer calls out to phones but I can make a call to it from my phone.
A
– Check there is balance on the SIM card.
A
– Switch off the power, remove the SIM, put it into a phone, and check that a call can be made
from a phone. This will verify if the SIM is still working and in service.
Q.
The Android App shows an error message “Command Failed” when I try to use a
function.
A
– Go to phone settings/application manager/cellbox prime/permissions, and ensure all
permissions are turned ON. Also ensure the app settings screen has a valid phone number
stored.
Summary of Contents for CELLPRIM4GE
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