I have Plantronics voyager Pro headset. The microphone is not working. The receiving end cannot hear me

Aye, laddy, you've done all that's humanly possible to make it work with no success (I'm a doctor, Jim, not a miracle worker!*). Yer only recourse is to get Plantronics to replace it. You mention "just over 1 year old." If yer within 12-13 months, call Plantronics at 800-544-4660 x5 x5538 for warranty replacement.

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Plantronics M100 always calls the wrong person:

Unfortunately this is a common occurrence. We say one name and it says, "did you say..." something totally different. I think that most of us has had that experience. The Bluetooth headsets that have a longer "boom" type mic will pick up your voice better and have a better chance at hearing your voice properly the first time. Models like the Plantronics Voyager Pro+ and the WG100/B have a boom type microphone. The WG100/B also includes a UBS Bluetooth adapter so it can be used on a pc.

http://www.headsetsdirect.com/plantronics-bluetooth-headsets/bluetooth-for-mobile-phones/voyager-pro-bluetooth-headset.html

http://www.headsetsdirect.com/plantronics-bluetooth-headsets/computer-mobile/wg100-b-savi-go-wireless-headset-mobile-computer.html

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Try turning both your phone and headset off and on, and then repeat the pairing process.

Here is the link to the Plantronics Voyager Pro User's Guide.

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You want to remember that newer phones are like small computers, so they may become corrupt over time and you may need to reset them every so often. Simply turn your phone off and remove again the battery for a few seconds, then replace the battery and turn it back on again. Purge from the phone pairing information for your Voyager Pro headset and pair it again with your phone, carefully following the instructions on the link below for the Plantronics Voyager Pro. That should get some sound back in your headset.

Plantronics Voyager Pro User's Guide

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If you have the Plantronics Voyager Pro headset, you should be using the ac adapter that came with the headset ( model 79414-01 ). If the headset will not charge, it could be broken or the internal battery may be worn out. Keep in mind that the Voyager Pro has a one year warranty, and Plantronics will replace it within the warranty period.

Plantronics Voyager Pro Headset

AC Adapter for Voyager Pro Headset

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If you have a 510a base, then purchased a Plantronics Voyager Pro headset to replace your old headset, it won't work. Those are two different headsets. The Voyager Pro is not meant to work with the 510a base. The correct headset is this:

Plantronics Voyager 510 Replacement Headset

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Once you make your iPhone discoverable, then put the Plantronics Voyager Pro headset into pairing mode by holding the power button until the headset flashes red and blue. Here is the link below for the Voyager Pro pairing instructions.

Plantronics Voyager Pro Pairing Instructions

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Make sure that it has a good connection, try to re-pair the headset to your phone. Before running through the pairing process, be sure to totally delete the headset from the phone's menu. You may want the headset turned off for this process.

Once you make your cell phone discoverable, then put the Plantronics Voyager Pro headset into pairing mode by holding the power button until the headset flashes red and blue. Here is the link below for the Voyager Pro pairing instructions.

Plantronics Voyager Pro Pairing Instructions

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It sounds like a phone issue, and the headset is a trigger. Please remember that newer phones are like small computers, so they may become corrupt over time and you may need to reset them every so often. Simply turn your phone off and take the battery out for a few seconds, then replace the battery and turn it back on again. You'll need to purge from the phone any pairing information for your Voyager Pro headset and pair it again to your phone. Carefully follow the instructions in the link below for the Plantronics Voyager Pro.

Plantronics Voyager Pro Plus User's Guide

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The HL10 handset lifer is what notifies your headset that you have an incoming call. If you are using the handset lifter and are not receiving the 3 short beeps in your ear piece there are a couple different things that could be going on.
1. The internal microphone could have gone out on the lifter. This microphone is what sends the signal to your headset that you have an incoming call. If the microphone is working you will hear 3 short beeps in your headset.
2. If the volume is too low on your telephone, the handset lifter will not notify the headset of an incoming call, so try turning the volume up on your phone and see if that takes care of the problem.
3. The HL10 handset lifter ships with a ring detector that has a 2.5mm jack on one end and a small round microphone on the other end. This ring detector is intended for phones that do not have the speaker located under the handset. You could try plugging this into the back of the lifter and setting the microphone next to where the lifter is mounted on your phone. This might help pick up the sound of the phones ring tone.

If you are manually lifting your handset out of the cradle and sitting it to the side instead of using a lifter, then you will not receive the 3 short beeps in your earpiece to notify you of an incoming call.

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