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Yealink – Adjusting the sending volume (outgoing volume) on the T2, T4 and T5 Series Phones

You may be getting reports from your customers saying that when they are on a call, the opposite party is telling them that their audio is too quiet, or maybe even too loud when they talk. Usually this isn’t a problem because the opposite party can adjust the volume of the person calling with their own phone, but what if the opposite party has already done that and it’s still too quiet or too loud?

If that is the case then you may be able to adjust three settings on the Yealink device. These can found on the web user interface by going to the ‘Features’ > ‘Audio’ page and adjusting the settings in the image below outlined in green.

An alternative way to think what these settings do is adjusting how sensitive the microphone is on the device. You can adjust the handset, headset and handsfree sensitivity to be weaker or stronger. The valid values are between -50 and 50. The higher the value, the louder it should be. The lower the value, the quieter it should be.

When adjusting this setting it is important to be cautious. Incorrectly configuring the value can have adverse effects on the audio quality so it’s advisable to gradually increase or decrease the value until you find the right spot.

If you control your own provisioning server and would like to configure this remotely you can use the provisioning parameters below:


Hopefully after adjusting these settings it resolves the issue and provides a better experience for the end-user and the opposite party on the calls.

For further technical assistance with your Yealink devices please contact our support team by emailing

Get your FREE UH36 headset with Yealink’s Winter Promotion

Kicking off the festive season, we have teamed up with Yealink to bring you an exciting Christmas promotion. Purchase any 10 devices from the Yealink T5 series and receive a FREE* UH36 Binaural headset worth over £70! Take advantage of this incredible offer from the 1st December until the 31st December.

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Offer Terms & Conditions
1. Orders are to be placed in sets of 10 to claim free UH36 headset. E.g 1 order of 10 will be eligible, however 5 orders of 2 will not be eligible.
2. Offer is available from the 1st December until 31st December
3. This offer has no limited to the number of times it may be used as long as it meets the requirements. e.g 1 order of 50 phones can claim 5 free UH36 headsets
4. Products can be sent to different address if resellers wish you keep the Headsets, however shipping charges will apply to each address

Yealink NFR Offers Extended!

Great news, following the popularity of our Yealink NFR offers, we’re inviting you to join the growing number of resellers who have tried and tested the latest Yealink devices at significantly reduced prices.

Yealink CP Series NFR Offer

With a conferencing solution for rooms of all shapes and sizes, Yealink’s CP devices are all available for purchase at the following NFR pricing until 30/11/2019.





Yealink T5 Series NFR Offer

As the latest devices to join Yealink’s IP desk phone range, ProVu resellers can purchase one of each of the following devices at a significantly reduced price until 31/12/2019.





The above NFR offers are available to customers who have not yet purchased any phones from the T5 or CP series. To place your order, please call 01484 840048 or email