Snom D7C

Expansion module

Key features

  • 6.8 Zoll (17.2 cm) TFT colour screen
  • Expansion module with 48 (16) programmable buttons
  • Plug-and-play
  • Expandable with up to two additional modules

The expansion module with high-resolution colour display


The Snom D7C is the expansion module for the phones Snom D785, Snom D765, Snom D735 and Snom D717.

The extension module has a high-resolution colour display with a completely revised user interface.

Connected to a Snom phone via USB plug & play, the Snom D7C expands the phone with another large screen and multiple application possibilities.

With the help of the 16 physical (48 virtual) freely programmable and multi-coloured LED function keys, the status of colleagues can, for example, be quickly recognised and the corresponding number dialled or a call forwarded. If the corresponding line or the LED function line lights up green, the colleague is available and can take a call.

And if you want to have a comprehensive overview, you can connect up to three Snom D7C in series and thus extend the range of functions enormously. Quite simply with plug-and-play via USB.  In addition, the power supply runs through the phone via USB.

The configuration of the Snom D7C works either via the existing telephone system or the Snom web interface.

The display of the extension module supports multiple styles and icons and custom background images can even be applied.

The Snom D7C is the colourful and informative extension module for selected phones of the Snom D7xx series.



48 programmable keys

(16 physical), with multicolour LEDs - The keys can be assigned with all functions available on the Snom phones, e.g. speed dial, direct dial or extension. The multicolour LEDs indicate the call and presence status of a direct dial.

High-resolution 6.8" TFT colour display

The D7C features a high-resolution colour display with a completely redesigned user interface.

Up to 3 expansion packs can be combined

If you need a lot of programmable function keys, the Snom D7C is ideal for you, because you can connect up to 3 in a row to each Snom desk phone.

Overview of Series

Technical features


Expansion module connectable

To have additional speed dial or BLF keys available on your desk phone, this device can be supplemented with expansion modules.


Multipage display

The display of the programmable function keys is distributed over several "pages" and can be switched through.


Plug & Play

This device comes with Plug & Play. This means you can use accessories connected via USB without rebooting the phone.


Self-labeling keys in additional display

Unlike in the past, where the freely programmable function keys were labeled by means of paper, this device has labeling in a display.


USB port

This device has at least one USB port.


Help with questions about products, availability and prices


Contact person

Snom HQ Berlin

+49 30 39833-0

Where can you find a Snom partner near you?

You want to buy our products and need advice? Then you have come to the right place.


Which distributor offers the products?

Snom is available all over the world. If you are looking for a wholesaler, you can find here all our partner distributors sorted by country.


Find the right telephone system (PBX).


List of our compatible PBX


If you would like to know whether your desired phone is compatible with the PBX you are using, you can view the on our PBX partner overview page in the Service Hub.



Information on choosing a PBX


Do you need information when choosing a suitable PBX for your desired telephone? We have compiled some tips for you in the guide on what you should look out for.


Technical data




Expand all add
add remove

The latest firmware for your Snom device can be found at the link below. When updating, please follow all safety instructions and take into account which firmware version is currently permitted by the PBX you are using.

You may not be able to update your Snom device manually, but only via the web interface of your PBX.


How To´s, FAQ & Co.

In the Service Hub we have created a variety of instructions and help for you.


Contact person

Headquarter Berlin

+49 30 - 39833-0
Office hours: Mo-Fr 9:00-17:00 (CET)


Inhouse Sales
Inhouse Sales

language Sales DACH

phone +49 30 39833 0



Snom Technology GmbH
Aroser Allee 66
13407 Berlin

Phone: +49 30 39833-0
Fax: +49 30 39833-111


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Are you looking for help with a problem, a manual, an answer to your question or the latest firmware for your Snom device?

We have set up the Snom Service Hub to provide you with everything you need.



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