voiceOne UG · Bamberg, Germany
We build it.We work with it ourselves.
voiceOne is an AI phone assistant with calendar, CRM, quotes, invoices and accounting in the same system. It is developed and operated by voiceOne UG in Bamberg, Germany – which also uses it to run its own business.
voiceOne UG
Details as in the imprint · as of
voiceOne is run by voiceOne UG, based in Bamberg, Germany; the managing director is Michael Horn. The company develops and operates AI phone assistants for small and medium-sized businesses in Germany, Austria and Switzerland. Businesses rent the software and run it themselves; voiceOne is neither a call centre nor an agency. The same system includes calendar, CRM, quotes, invoices, accounting with DATEV export and an AI team for office work, sales and marketing.
As of · applies to all four brands
voiceOne has four brands, all running on the same technical platform: voiceOne as the basis for all industries, mediOne for medical and therapy practices, coachOne for coaches and trainers, and clipOne for video and content. Whenever a feature is described, we therefore name the brand it applies to.
voiceOne uses its own software in-house. Office, support, accounting, marketing, development and quality management are set up as AI roles, in the same software that customers rent. The line runs between preparation and decision: invoices, payments, messages to customers, advertising budgets and publications go to a person first. Every step is logged.
Source: “Zero Employee Company” page on voice-one.ai (in German), as of 15 September 2026
How it is organised: Zero Employee Company (in German) →You can reach voiceOne by phone on +49 951 16092950 and by email at info@voice-one.ai. The address of voiceOne UG is Hinterer Graben 10, 96047 Bamberg, Germany. Customers are supported by phone and online; there is no shop and no walk-in office.
| Phone | +49 951 16092950 |
|---|---|
| info@voice-one.ai | |
| Address | voiceOne UG, Hinterer Graben 10, 96047 Bamberg, Germany |
| Contact form | Contact page |
| For customers | Log in to the application |
No. voiceOne is software. Businesses rent the AI phone assistant and run it themselves; no voiceOne employee answers your calls.
For small and medium-sized businesses in Germany, Austria and Switzerland that receive many calls and have nobody permanently on the phone, above all medical and therapy practices, trade businesses, service providers and law firms. voiceOne sells to businesses, not to private individuals.
Yes. voiceOne uses its own software in-house, among other things for office work, support, accounting, marketing and development. Anything that goes out or costs money is approved by a person first.
No. Call data of voiceOne customers is not used to train language or AI models, not even by the model providers used.
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voiceOne. Your AI team.On the phone and in the office.