Question about Plantronics M55 Bluetooth Headset
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Posted on Jan 02, 2017
Echo is usually caused by the transmit (speak) level on the unit being
set too high.
1. First, try lowering the volume of the telephone. If you still hear an echo, adjust the volume of the headset itself.
2. The master transmit controls of the headset are the ABCD switch settings on the bottom of the base. A is the lowest and D is the highest setting.
3. You can fine tune this setting with the plus (+) and minus (-) buttons on the back of the charging base.
4. If this doesn't fix the echo, try moving the configuration dial on the left side of the charging base. The recommended setting for most phones is 1.
Posted on Jul 18, 2009
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