Corded Headsets: Basic Troubleshooting
No Recieve (RX) No Incoming Sound
Make sure the amplifiers is powered correctly - If you are using batteries, confirm that they are good and placed in the battery compartment correctly. The + and - positions are marked in the amplifier's battery compartment. If you are using an AC Power Supply, confirm that it is plugged in and the power outlet is turned on.
These amplifiers are NOT designed to work on telephones that have the dial pad in the handset nor will they work on cordless telephones. Check the on line compatibility guide to make sure the telephone is compatible with the headset.
Confirm that the Headset / Handset Selector (or On / Off) switch is depressed with the colored indicator showing.
Confirm that you have lifted the telephone handset (receiver) out of the cradle.
Confirm that the telephone handset cable and the short cord to the telephone are connected to the correct jacks.
Confirm that the Compatibility Switch is in the correct setting for your phone. You may want to try moving the switch through all of the positions until you hear a clear dial tone. Some phones can use more than one switch position, but only one will sound the best. Experimenting with various switch settings will NOT harm the amplifier or your phone.
Reduce the transmit level or mic volume on the headset amplifier or base adaptor unit.
Also consider replacing a voice tube headset with a noise cancelling headset.
No Transmit (TX) Callers cannot hear me
If callers cannot hear you, verify that your "Mute" (if applicable) switch/button is not activated.
If you are using a headset with a clear plastic Voice Tube, check its position. It should be 2 finger widths in front of your mouth. Voice tubes can also become clogged. To check your voice tube, slide it off of the headset while on a call. If the caller can hear you without your voice tube, it means your voice tube is clogged and needs to be replaced.
Some amplifiers also have a microphone volume controls.
Check your amplifier’s User Guide to locate and adjust your microphone settings.
Confirm that the configuration switch of your amplifier is set to the correct setting for your phone model.
If you are using a headset on a cordless phone you may have low outgoing volume unless you are using a headset made for cordless phones, Click here to view the headset we have designed especially for cordless phones.
Humming in Headset
A hum on the headset can be caused by many different things. Please try the following:
A hum can also be caused by the settings on the amplifier. Please follow the instructions below to change your settings:
For wireless models:
For M10, M12, MX10, and M22 Vista amplifiers:
For S10, S11, and S12 Amplifiers:
For the A20 and S20:
For the PLX500 amplifier:
For the SP05 amplifier:
You may want to try moving the switch through all of the positions until your caller can hear you clearly or the hum disappears. Some phones can use more than one switch position, but only one will sound the best. Experimenting with various switch settings will NOT harm the amplifier or your phone.
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