Frequently asked questions

We are happy to help with start-up and ongoing operation and clarify questions in advance.



+49 (0) 7420 889 800


➝ Starting up

Each time the VoiceBridge is started up, it automatically adjusts to the respective environment for about 5-10 seconds. Echoes and feedback should not occur afterwards.


➝ Mounting - How do I attach the VoiceBridge?

The VoiceBridge is equipped with a highly adhesive mirror tape. Therefore, please test the best position before you attach the two microphone units.


➝ Positioning - Where do I attach the VoiceBridge?

Mount the VoiceBridge at head height: The clarity is better the closer staff or customers are to the microphone. If the speaker is standing, the VoiceBridge should be placed higher than if the speaker is sitting. The microphones are located on the bottom right, which is why the attachment slightly left of the head is recommended.


➝ How long does the battery of the Bluetooth headset last?

The battery life is about 11 hours in continuous operation. The standby time is about 60 hours and the headset will be fully charged via USB cable in about 2 hours.


➝ Why do I need a battery for operating the VoiceBridge?

It is not always possible to plug in an intercom unit into a power outlet. This might be the case with mobile information desks or when safety regulations prohibit cable routing to an electrical outlet for safety reasons.


➝ How can I test the VoiceBridge?

Please note that the intercom system is only activated by infrared sensors if someone appears within a distance of about 50 cm in front of it. If you have installed the VoiceBridge and would like to test it, please make sure that there is also someone on the opposite side.


➝ When is the set with Bluetooth headset recommended?

Whenever staff walks around, picks up things from shelves or the workplace situation requires a bigger range of motion: The headset remains connected to the customer‘s intercom within a radius of 5-10 meters. But the setup with Bluetooth headset also makes sense - for example - if no cable can be routed between the customer call station and the staff call station. This is often the case with permanently installed protective screens or completely closed information desks.


➝ Operation - What to do if I hear echoes?

Turn down the VoiceBridge: Echoes are typically caused by reflections and radiation from loudspeakers into microphones. To maintain the impression of a natural conversation and to avoid echoes and feedback the VoiceBridge should always be operated as quietly as possible.






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➝ Operation - Why do the units whistle (feedback)?

Reduce the volume with the supplied mini cross-head screwdriver as listed in the operating instructions. If possible, position the microphone units further apart.

➝ Can I connect any headset?

The VoiceBridge supports most commercially available Bluetooth headsets. The headsets included in the set are already paired with the unit ex works.

➝ How many headsets can I use in one station?

If every staff member would like to have his own headset, up to 8 headsets can be paired per Bluetooth intercom unit.

➝ How do I switch between the intercom unit and the headset?

The VoiceBridge does this automatically. As soon as the headset is off or out of range, the voice station is activated. This only applies to the “Standard & Bluetooth” set

➝ How do I clean the VoiceBridge?

You can easily clean the VoiceBridge with a surface cleaner and a cloth. The same applies to the headsets.

➝ Are there hygienic covers available for the headsets?

Yes, we also offer hygienic covers for the headset, just ask us about it!

➝ I cannot run any cables.

In this case, use our battery in combination with the Bluetooth set. This way you do not have to run any cables.

➝ How can I pair another headset?

Simply press and hold the Bluetooth pairing button (see operating instructions).


➝ How can I regulate the volume of the intercom?

You can adjust the volume very easily with an integrated volume control regulator. You will find detailed information on this in the respective operating manual.

➝ Why does my headset not connect to the intercom unit?

Probably because another headset is still connected to the Bluetooth unit (see status messages in the operating instructions). Pair your headset again if necessary.

➝ How can I mute the microphone of the headset?

Simply double tap the key on the headset. For confirmation a sound signal will give you feedback. The microphone can also be reactivated similarly.

➝ How can I adjust the volume on the headset?

There are two buttons (+/-) directly on the headset.



Download our brochure and more material.

Get the VoiceBridge

In case you need help choosing the right VoiceBridge Set, just try our assistant and get instant feedback.


VoiceBridge  NEW

Standard 2nd generation

The complete set „Standard“ is particularly useful for workplaces where the staff is standing or sitting permanently in one place and does not move away from the microphone unit.




The mobile version: Thanks to Bluetooth, employees can move within a radius of 5-10 meters from the call station without losing contact with the customer.



Standard & Bluetooth

Always on the safe side: If the Bluetooth headset is temporarily switched off, the VoiceBridge station attached to the protective wall automatically takes over.

Learn more




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✆ Tel: +49 (0)7420 8890

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The VoiceBridge is the innovative intercom system for easy retrofitting in pharmacies, retail stores, advice centres, information desks and many other areas of application. Thanks to the latest technology, echoes are minimized and background noise is filtered out. With the new VoiceBridge Bluetooth sets, staff can easily move 5-10 meters around the sales counter and always stay in contact with the customer.

Designed, developed and distributed by WHD in Deisslingen.


WHD  -  Wilhelm Huber + Söhne GmbH + Co. KG - Bismarckstraße 19 - D-78652 Deisslingen - Germany - info@whd.de - +49 (0) 7420 889 0