Audio intercoms

Squealing sound from the indoor or outdoor units
If you notice a squealing sound or interference through the speakers of the indoor or outdoor units then this can be caused by feedback. This can occur when the outdoor and indoor units are too close together, move the units further apart and the issue sho...
Door Lock is not opening or staying open not long enough
Most intercoms support the use of a door lock to allow the door to be opened after pressing a button on the intercom. Should the lock not operate please check: The lock will not function: Does the intercom require an additional power supply to powe...