Why does inbound audio cut out on my 3M Intercom System (but outbound audio is okay)?
If inbound audio cuts out, but outbound audio is okay, it could be due to the AEC level being too high. Try reducing the AEC level. Alternatively, the headset may be too close to loud ambient noise; move the headset away from these sources.
What to do if there is no vehicle alert tone in all 3M Telephone headsets?
If there is no vehicle alert tone in all 3M Telephone headsets, check the following: * Ensure the external vehicle detector is properly plugged into a power outlet or replace the detector fuse. * Try resetting the vehicle detector by removing power for a few seconds. * Adjust the alert tone volume on the base station, as it might be set too low.
How to fix no communication with flashing green LED on 3M XT-1?
If all 3M Headsets show a flashing green LED and there are no communications, first ensure the base station is properly powered by checking the power transformer connection to both the wall outlet and the base station. If the LCD display doesn't turn on, verify power at the wall outlet. If the issue persists, try registering the headsets again. If problems continue after that, the base station may be defective, and you should call for authorized service.
Why doesn't the green light on the 3M Telephone charger ever come on?
If the green light on the 3M Telephone charger never comes on, replace the battery.
How to troubleshoot low talk volume on a single 3M Intercom System headset?
If you are experiencing low talk volume on a single headset, there are several possible solutions. First, power off and then power on the headset to reset the volume level. Also, make sure the operator is positioning the microphone correctly by adjusting/repositioning the headset microphone(s).
Why no talk or listen from the menu sign when using the backup wired intercom on 3M Telephone?
If you cannot talk or listen from the menu sign when using the backup wired intercom, but the 3M Wireless Communication System Model XT-1 works, check the following: * Ensure the backup switch on the base station is turned ON. * Verify the backup intercom has power and is turned on, or plug in its power transformer. * Increase the volume controls on the backup intercom.
Why is the battery life so short on my 3M XT-1 Headsets?
If you're experiencing short battery life, the batteries may be worn out and need replacement. Also, ensure that the correct type of power transformer is used for the charger, specifically one marked 'Secondary Voltage 14 VAC.'
Why doesn't the green light turn on when charging my 3M Headsets?
If the green light on the charger never comes on, the battery may be defective and needs to be replaced.
What to do if my 3M XT-1 Headsets won't go into standby?
If the headsets do not go into standby (silence) when the vehicle leaves, and a pulse (air switch) type of vehicle detector is in use, press the Page switch to silence the menu microphone. If a loop is used, check for any large metal object near the loop in the driveway and remove it. Try resetting the loop detector by unplugging it from the AC outlet and plugging it back in. Verify that the system is not in 'Always On' order taking mode, and if it is, change the talking mode.
Why is one of my 3M XT-1 flashing green?
If a single headset has a flashing green LED, it may not be registered to the base station; try registering the headset. Another possibility is that the headset has lost reception to the base station; try moving to a line-of-sight location to re-establish communications.
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