AES global KEY-AUX-PBPK-US, Installation & User'S Instructions, Page: 35 / 44

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Q. The unit calls the first number, but voicemail comes on before it can ring the second
number.
A. Decrease the ringing time as per the SMS Parameters/ Settings section of AES PRO app.
Q. The caller ID function does not work.
A. If your number is private or number withheld, then it will not work.
-Ensure the number is entered as you would normally dial it from another phone.
-For International customers, ensure the numbers have been entered with their international
dialling code. If this does not work, try again without.
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 that 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 cellular buzz can be considered normal on cellular intercoms, but not so
much that causes an inability to hear the person speaking. This is a symptom of poor reception.
Try the above steps on checking and improving reception. Consider fitting an external high gain
antenna. Move the antenna further away. Remove any short bends in the antenna. Ensure the
spare antenna cable is not rolled up inside the call station.
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 to wire 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 the 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 to be 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.
- Check relay 1 & 2 with multi-meter. If relay 2 works but relay 1 does not, then relay 1 may be
defective.
-Check if it works by SMS. Try latching a relay then use the status button to check if the relay is
latched. If that works, the problem could be the phone being used, or low signal strength at the
intercom.