Upper-3 German AI Voice Receptionist
A completed pilot for a German-language AI voice receptionist that supports dental appointment conversations through Telnyx, Retell AI, and Google Calendar.

- Type
- Client project
- Status
- Pilot completed
- Industry
- Dental services
- Project type
- Pilot
- Location
- Germany
- Commercial detail
- Project fee: €550
- Relevant service
- AI Voice Receptionist
- Client identity
- Upper-3
- Published outcome
- Pilot completed; no performance metrics claimed
Illustrative visual for the completed Upper-3 pilot: a German-language voice receptionist connected to an appointment workflow. The image does not represent measured call or booking results.

Context before automation.
Business
Upper-3 is a dental-services business in Germany exploring how a German-speaking AI receptionist could support its existing front-desk process.
Problem
A dental reception team must answer calls while also helping patients and managing appointments. When staff are busy, callers may wait or need to call again. Upper-3 wanted to test appointment-related conversations in German without presenting unverified operational benefits as measured results.
What can be described publicly.
Rynx Systems built a pilot AI voice receptionist that answers incoming calls, speaks formal German using ‘Sie,’ identifies appointment requests, and uses Google Calendar to support scheduling.
- 01
A caller dials the German phone number connected to the pilot.
- 02
Telnyx routes the call to the Retell AI voice assistant.
- 03
The assistant speaks with the caller in German and identifies the appointment request.
- 04
The connected Google Calendar supports the booking process.
- 05
The conversation follows the receptionist instructions configured for the pilot.
Confirmed scope without invented claims.
Only details supported by the current brief are included. Unapproved implementation details remain private.
Formal German-language conversations
Appointment-request identification
Google Calendar scheduling support
Configured dental reception instructions
Telnyx for the German telephone number and call routing, Retell AI for German voice conversations, Google Calendar for appointment scheduling, and a German-hosted server for pilot infrastructure.
A delivery timeline was not provided. The completed engagement was a pilot.
Rynx Systems completed the Upper-3 pilot, demonstrating how a German-speaking AI receptionist could support dental appointment enquiries by phone. Calls handled, appointments booked, time saved, and reductions in missed calls have not been verified and are not claimed as outcomes.
“Working with Rynx Systems was a great experience. Aslam built a German-language AI voice receptionist pilot designed to handle appointment calls and connect with Google Calendar. He understood our requirements and turned the idea into a practical solution for a dental practice.” — Niklas, Upper-3
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