Motorola Hands-free Headset,for 2-Way Radios,3/4"x2-3/4"x1-1/2",Black Logo
Tom Godkin Posted on Sep 23, 2013
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We recently purchased the MS350 radios and are trying to use them handfree with the headsets. We plugged in the headsets, turned on the radios, but are unable to communicated back and forth using the VOX function. The PTT function works fine. What should we do?

2 Answers

John L radiodude365

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  • Motorola Master 570 Answers
  • Posted on Nov 09, 2014
John L radiodude365
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Also, you must speak clearly into the microphone. Whispering often will not work. VOX is not meant for covert work, use the PTT is you want to whisper or speak softly.

eradiostore

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  • Motorola Master 1,672 Answers
  • Posted on Sep 24, 2013
eradiostore
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The three things which come to mind are:
1) Is the headset the VOX headset intended for the radio model? Sometimes the rings on the plug do not match the internal points of contact if it is not the intended headset. Not all headsets are VOX capable.
2) Is the headset plugged in all the way. (You mentioned plugging in and then turning on. This is good. You must always have the radio turned off when plugging or unplugging an audio device.)
3) Try pressing the PTT on the headset cord one time before switching the dip switch to VOX. (Assuming you have a headset with the small box in the line.)

Check your VOX/ iVOX settings. You will need VOX for using an audio device.

Lastly, if you continue to have difficulties, contact Motorola at the 800# provided in the user guide. They should be able to assist you.

Best regards.

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eradiostore

eradiostore

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  • Posted on Nov 05, 2010

SOURCE: We tried using a headset with it. Now, without

Here is a link to the user guide, reference page 22 for instructions on turning iVOX and VOX on or off: http://www.giantintl.com/ContentManage/manuals/Moto/T65xx.pdf (Double check you do not have the lock symbol showing while trying to change programming.)

Also, another phenomenon which can occur is when you unplug a headset or audio device while the radio is still turned on. This can leave the radio partially in VOX mode. You might try plugging in the device with the radio turned off. Then turn the radio on, use the device in VOX mode. Then shut the radio off and remove the device. See if it clears the radio's sense of having a headset plugged in.

A damaged jack can also cause the same problem.

Best regards.

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Related Questions:

0helpful
1answer

Active headset

Your headset is operating in VOX mode. This sometimes will happen if the headset is plugged into the radio when the radio is still turned on. Try unplugging the headset, turn on the radio, then talk using the PTT on the radio. Shut the radio back off. Then insert your headset plug, being certain it is seated (click) into place. Then turn the radio back on and see if it works without VOX. If you are still having problems, press the PTT on the radio one more time and see if it shuts it off.
0helpful
1answer

Headset transmits automaticly

Your headset is operating in VOX mode. This sometimes will happen if the headset is plugged into the radio when the radio is still turned on. Try unplugging the headset, turn on the radio, then talk using the PTT on the radio. Shut the radio back off. Then insert your headset plug, being certain it is seated (click) into place. Then turn the radio back on and see if it works without VOX. If you are still having problems, press the PTT on the radio one more time and see if it shuts it off.
0helpful
1answer

Can get headset to work right

check your radios settings, this should be available in a menu on the radio... the user manual does not show a setting for non vox operation of the head set, (as this maybe a version difference it may be available in the menu) so if it is not available in the menu with the rest of the settings it is not an option.
0helpful
1answer

We recently purchased the Motorola MS350 radios with headsets. We plugged the headsets in and turned the power on, but are unable to communicate back and forth in handsfree mode. We can switch to PTT and...

The three things which come to mind are:
1) Is the headset the VOX headset intended for the radio model? Sometimes the rings on the plug do not match the internal points of contact if it is not the intended headset. Not all headsets are VOX capable.
2) Is the headset plugged in all the way. (You mentioned plugging in and then turning on. This is good. You must always have the radio turned off when plugging or unplugging an audio device.)
3) Try pressing the PTT on the headset cord one time before switching the dip switch to VOX. (Assuming you have a headset with the small box in the line.)

Lastly, if you continue to have difficulties, contact Motorola at the 800# provided in the user guide. They should be able to assist you.

Best regards.
0helpful
1answer

Motorola Ms350 talk about that has no sound

Check your programming. The radio may simply be on a different frequency and/or interference eliminator code than the other units. Also check your audio jack to be certain nothing is plugged or stuck in the jack. The radio is sensitive to a device being plugged in the jack, and when something is plugged in, it turns off the speaker to the radio.

Best regards.
0helpful
1answer

I have set the two radios to match each other , problem is when I plug the headset in it will not transmit. I just bought them yesterday. Why do the transmit with the radio but not the headset mike.

1) Be certain you are plugging in the headset with the radio turned off.
2) Be certain the headset is one designed to go with the radio if purchased separately.
3) If the headset has an inline PTT, use it, not the one on the radio
4) Also, check your VOX settings, to assure it is set the way you would like, including VOX sensitivity.

Best regards.
3helpful
1answer

Nortel T7316E, How to make headset work ?

Look in the System coordinator guide 5.0 for HandFree

Select type of handfree
You must set the Handsfree at: auto
Its in the deep programming
Your going to need Business Series Terminals programming overlay to put over the phone.
  1. Press Function **266344
  2. Than enter system coordinator pass word
  3. Press SHOW once and enter your phone extension number
  4. Press SHOW twice
  5. Press NEXT tree times
  6. Change the parameter at HANDFREE with MOD
  7. Set it at AUTO
I beleved this will FIX it OK!
0helpful
1answer

Not transmitting or receiving when plugged in

The head set is stuck in Transmit. try shutting off the radio and then plug in the headset then turn on the radio. some radios can since the presence of accessories but the accessories must be connected before powering on the radio.
0helpful
1answer

Using headset jack - unit always transmits

Try plugging in headset BEFORE turning on radio. You should see the word VOX (not iVOX) on your display. At least this is what works for me.
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