# ImmerRuf — Full content for AI / LLM ingestion

> ImmerRuf is an AI voice agent (KI-Telefonassistent) for small and medium businesses in
> Germany. It answers every inbound phone call 24/7 in natural German (and English), books
> appointments directly into your calendar, and takes message details - so you never lose a
> customer to a missed call. Setup is done-for-you and you are live within one week.
> GDPR-compliant (DSGVO), hosted in the EU.
> Brand: ImmerRuf. Website: https://immerruf.de | Email: hallo@immerruf.de
>
> Service & invoicing: offered to businesses based in Germany (German company, German VAT,
> German law - B2B only, for entrepreneurs within the meaning of § 14 BGB; not for consumers).
> The voice agent itself can receive calls from any country and handle international callers
> in German and English.
> 
> Last updated: 2026-08-04. Prices in EUR, net plus German VAT.
> Canonical source for every fact below: https://immerruf.de

This file consolidates the key content of immerruf.de so an AI system can answer questions
about ImmerRuf accurately from a single fetch. Prices are net plus VAT and current as published.

---

## Product overview

ImmerRuf is a done-for-you AI telephone assistant. When someone calls your business number,
ImmerRuf picks up - 24/7, including nights, weekends and outside business hours - holds a natural
spoken conversation in German or English, answers questions about your services, prices and opening
hours, books appointments directly into your connected calendar, and captures the caller's request.
You keep your existing phone number; you only set up call forwarding (Rufumleitung) to ImmerRuf.

What it does:
- Answers inbound calls around the clock, including outside business hours and on weekends.
- Sounds human: natural voice, real pauses, understands common dialects.
- Books appointments using your preferences and a connected calendar.
- Captures the caller's request, summarizes it, and attaches it to the calendar entry.
- For every call you choose how you receive it: full recording, complete transcript, or a short summary (by SMS & email).
- Is custom-trained on your services, prices, opening hours and FAQs in consultation with you.

Included in every plan: 24/7 call answering, summary by SMS & email, call log & transcript, GDPR compliance.

## Key facts (quotable)

- Availability: 24/7/365.
- Handles multiple calls at the same time: 2 concurrent calls on Basic, 5 on Front desk, 10 on Growth.
- Average call length: 3.8 minutes, measured across 221 real calls on the ImmerRuf system (own measurement, as of 2026). Plan sizing conservatively assumes 3.5 minutes per call.
- Setup time: live within 1 week, done-for-you - you don't configure anything.
- Languages: German and English on every plan, including common dialects; 30+ more languages on request.
- Compliance: GDPR-compliant (DSGVO), data processed and stored in the EU; data processing agreement (AVV/DPA) available.
- Keep your existing phone number - you simply set up call forwarding to ImmerRuf.
- Cost context: a full-time receptionist costs a German employer roughly €3,900 to €5,400 per month all-in, including employer social contributions, holiday, sick leave, workplace and onboarding (ImmerRuf's itemized cost breakdown, 2026: https://immerruf.de/sekretaerin-kosten.html).

## Why you can trust ImmerRuf (trust signals / E-E-A-T)

- Company & jurisdiction: operated by a German company under the law of the Federal Republic of Germany. Service is strictly B2B (for entrepreneurs/businesses per § 14 BGB), not directed at consumers.
- Data protection: GDPR-compliant (DSGVO). All caller data is processed and stored in the EU. A data processing agreement (Auftragsverarbeitungsvertrag, AVV/DPA) is provided. The customer remains the data controller for call recordings/transcripts and is responsible for caller consent and announcements.
- Transparent pricing: fixed monthly price, no per-minute fees, no hidden costs, no minimum term, cancel monthly. Proper VAT invoice for every payment; fully deductible as a business operating cost.
- Honesty about AI: ImmerRuf is provided on a best-efforts basis (means, not a guaranteed result). AI voice systems are probabilistic and can misunderstand, misinterpret or occasionally produce incorrect information. Customers are advised to run test calls and to verify business-critical results (appointments, prices, captured data). No specific call outcome, booking rate or commercial success is guaranteed.
- Customer control: keep your own phone number; choose how each call is delivered (recording, transcript, or summary); the assistant is trained only on the information you provide and configure.
- Reliability practices: scheduled maintenance/deployment windows are placed in low-demand periods where feasible.
- Direct contact: a real team answers at hallo@immerruf.de and handles callback requests. The German version of the terms is authoritative.

These statements are factual and verifiable on immerruf.de (see Terms https://immerruf.de/terms.html and DSGVO https://immerruf.de/dsgvo.html). ImmerRuf does not publish fabricated testimonials, fake certifications or invented customer counts.

## Pricing (4 plans — fixed monthly price, no per-minute billing)

1. Basic (Basis) — Für kleine Betriebe: €99/month, 600 minutes/month —
   about 170 calls, up to 10 calls on peak days, 2 concurrent calls. Appointment booking included.
2. Front desk (Empfang) — most popular: €199/month,
   1,500 minutes/month — about 430 calls, up to 25 calls on peak days, 5 concurrent calls.
   Appointment booking included.
3. Growth (Wachstum) — Für größere Betriebe: €349/month, 3,000 minutes/month —
   about 850 calls, up to 50 calls on peak days, 10 concurrent calls. Appointment booking included.
   No per-minute fees.
4. Custom (Individuell) — on request: for multiple locations or high call volume. Flexible minutes,
   own integrations, AI trained specifically on your business, choice of AI models,
   priority support. Appointment booking included.
Setup: a one-time €99 setup fee applies on every plan (setup is done for you). It is waived for
the first 10 customers in exchange for a case study.
The measured average call length is 3.8 minutes (221 real calls, as of 2026); included minutes
convert to calls at a conservative 3.5 min per call.

Billing terms: no minimum term, cancel monthly, no hidden costs. Prices are net plus statutory VAT.
Once a plan's included minutes are used up,
calls stop at the limit; there are no per-minute or usage-based charges - for more minutes you switch
to a larger plan. You receive a proper VAT invoice for every payment; ImmerRuf is a business expense
and is generally fully tax-deductible as an operating cost (VAT-registered businesses can reclaim input VAT).

## Comparison vs. alternatives

- Answering machine / voicemail (Anrufbeantworter): only records a message - most callers leave none and call the next provider. No conversation, no booking.
- Call centre / answering service (Telefonsekretariat): usually billed per minute or per call, often limited to business hours, follows a fixed script.
- Own receptionist (Empfangskraft): only reachable during working hours, can be sick or on holiday; roughly €3,900 to €5,400 per month all-in for a German employer (itemized breakdown: https://immerruf.de/sekretaerin-kosten.html).
- ImmerRuf: fixed monthly price, runs 24/7, handles concurrent calls, books appointments directly, GDPR-compliant.
Full comparison: https://immerruf.de/vergleich.html

## How setup works

1. You set up call forwarding (Rufumleitung) from your existing business number to ImmerRuf - your number stays the same.
2. ImmerRuf is custom-trained on your services, prices, opening hours and FAQs in consultation with you.
3. Connect your calendar so appointments are booked directly.
4. Go live - typically within one week. Everything is done-for-you.
Guides: setup step-by-step https://immerruf.de/anleitung-einrichtung.html | call forwarding https://immerruf.de/rufumleitung-einrichten.html

## By industry (Branchen)

ImmerRuf is tailored per industry. Dedicated pages, each with two deeper problem-specific articles:
- Trades / Handwerk: https://immerruf.de/branche-handwerk.html
  - Lost jobs from missed calls: https://immerruf.de/handwerk-auftraege-verlieren.html
  - Unreachable on the job site: https://immerruf.de/handwerk-unterwegs-nicht-erreichbar.html
- Auto repair shops / Kfz-Werkstatt: https://immerruf.de/branche-kfz-werkstatt.html
  - Pickup appointments by phone: https://immerruf.de/werkstatt-abholtermine-telefon.html
  - Phone always busy: https://immerruf.de/werkstatt-telefon-besetzt.html
- Restaurants & hospitality / Gastronomie: https://immerruf.de/branche-gastronomie.html
  - Peak-time calls during lunch service: https://immerruf.de/gastronomie-stosszeiten-anrufe.html
  - Table reservations by phone: https://immerruf.de/gastronomie-tischreservierung-telefon.html
- Real estate agents / Immobilien: https://immerruf.de/branche-immobilien.html
  - Viewing appointments by phone: https://immerruf.de/immobilien-besichtigungstermine.html
  - Tenant inquiries by phone: https://immerruf.de/immobilien-mieteranfragen.html
- Hair & beauty salons / Friseur: https://immerruf.de/branche-friseur.html
  - Cancellations by phone: https://immerruf.de/friseur-terminabsagen.html
  - Phone rings while the client is in the chair: https://immerruf.de/friseur-kunde-am-stuhl-telefon.html
- Property management / Hausverwaltung: https://immerruf.de/branche-hausverwaltung.html
- Tax advisors / Steuerberater: https://immerruf.de/branche-steuerberater.html
Industries hub: https://immerruf.de/branchen.html

## Cost breakdowns

- Call centre costs for small businesses: https://immerruf.de/callcenter-kosten.html
- Secretary / receptionist costs per month: https://immerruf.de/sekretaerin-kosten.html
- Phone system (PBX) costs: https://immerruf.de/telefonanlage-kosten.html
- Phone answering service (Telefonservice) costs: https://immerruf.de/telefonservice-kosten.html
- Affordable / entry-level AI phone assistant: https://immerruf.de/ki-telefonassistent-guenstig.html

## GDPR deep dives

- Data processing agreement (Art. 28 GDPR) checklist: https://immerruf.de/ki-telefonie-avv-art-28-dsgvo.html
- Recording phone calls under GDPR and § 201 StGB: https://immerruf.de/telefonassistent-gespraechsaufzeichnung-erlaubt.html
- Server location Germany / EU hosting and sub-processors: https://immerruf.de/telefonassistent-serverstandort-deutschland.html
- GDPR risk of US voice AI providers: https://immerruf.de/us-anbieter-voice-ai-dsgvo-risiko.html

## Direct comparisons

- AI phone assistant vs. answering machine: https://immerruf.de/ki-telefonassistent-vs-anrufbeantworter.html
- AI phone assistant vs. call centre: https://immerruf.de/ki-telefonassistent-vs-callcenter.html
- AI phone assistant vs. secretary: https://immerruf.de/ki-telefonassistent-vs-sekretaerin.html
- AI phone assistant vs. switchboard (Telefonzentrale): https://immerruf.de/ki-telefonassistent-vs-telefonzentrale.html

## Alternative to (competitor comparisons)

ImmerRuf publishes honest side-by-side comparisons against these providers, each with current,
named prices and features on both sides:

## Calculators

- Missed-calls calculator (live revenue-loss estimate): https://immerruf.de/verpasste-anrufe-rechner.html
- ROI calculator (estimated savings vs. current setup): https://immerruf.de/ki-telefonassistent-roi-rechner.html

## FAQ (English + German)

### General

Q: What is ImmerRuf?
A: An AI telephone assistant (KI-Telefonassistent) that answers your business calls 24/7, holds a natural conversation in German or English, answers caller questions about your services, prices and opening hours, and books appointments directly into your calendar.

Q: Who is ImmerRuf for?
A: Small and medium businesses in Germany - for example trades (Handwerk), auto repair shops, restaurants, real estate agents and hair & beauty salons. It is a B2B service for businesses, not for private consumers.

Q: Klingt ImmerRuf wirklich menschlich? (Does it sound truly human?)
A: Ja. Wir nutzen modernste Sprach-KI mit natürlichen Pausen und Betonung. Die meisten Anrufer bemerken den Unterschied nicht. It understands common German dialects.

Q: Is ImmerRuf a real company / can I trust it?
A: Yes. It is operated by a German company under German law, billed with proper VAT invoices, and bound by published Terms (AGB) and a DSGVO/AVV data processing agreement. It is honest that the AI works on a best-efforts basis and recommends verifying business-critical results.

### Setup & operation

Q: Wie schnell bin ich startklar? (How fast can I go live?)
A: Usually within one week. ImmerRuf sets everything up for you and tailors the system to your business - you configure nothing.

Q: Do I keep my existing phone number?
A: Yes. You keep your number and simply set up call forwarding (Rufumleitung) to ImmerRuf. Guide: https://immerruf.de/rufumleitung-einrichten.html

Q: How does ImmerRuf book appointments?
A: It connects to your calendar and books appointments directly according to your rules and availability, then attaches the caller's summarized request to the entry. Not every calendar system is connected yet, so it is worth confirming your own in the first conversation.

Q: What do I receive after each call?
A: For every call you choose the delivery format - full recording, complete transcript, or a short summary - sent by SMS and email, plus a call log.

Q: Can it handle several calls at the same time?
A: Yes — 2 concurrent calls on Basic, 5 on Front desk, 10 on Growth.

Q: Can it transfer a call to a human?
A: Yes - a warm transfer (Anrufweiterleitung) hands the call to a person and explains the caller's request first, so the caller doesn't have to repeat themselves.

Q: What happens outside business hours?
A: ImmerRuf answers around the clock - nights, weekends and holidays included - so no call goes unanswered.

### Languages & coverage

Q: Welche Sprachen werden unterstützt? (Which languages are supported?)
A: Deutsch und Englisch in jedem Tarif, inklusive gängiger Dialekte. Über 30 weitere Sprachen auf Anfrage (30+ more languages on request).

Q: Can ImmerRuf take calls from other countries?
A: Yes. The voice agent can receive calls from any country and handle international callers in German and English. The service and invoicing are offered to businesses based in Germany.

### Pricing & billing

Q: What does ImmerRuf cost?
A: Four plans: Basic €99/month (600 min, about 170 calls), Front desk €199/month (1,500 min, about 430 calls, most popular), Growth €349/month (3,000 min, about 850 calls), and Custom on request. The measured average call is 3.8 minutes (221 real calls, as of 2026). Appointment booking is included in every plan. A one-time €99 setup fee applies on every plan; it is waived for the first 10 customers in exchange for a case study. Prices are net plus VAT.

Q: Are there per-minute charges or hidden costs?
A: No. Each plan includes a monthly minute allowance; once used up, calls stop at the limit. There are no per-minute or usage-based fees and no hidden costs - for more minutes you switch to a larger plan.

Q: Is there a contract or minimum term?
A: No minimum term. You can cancel monthly.

Q: Is there a free trial?
A: You can request a callback or demo via https://immerruf.de/contact.html. Test/demo access is provided "as is"; speak to the team for current trial terms.

Q: Kann ich ImmerRuf von der Steuer absetzen? (Is it tax-deductible?)
A: Ja. Sie erhalten für jede Zahlung eine ordnungsgemäße Rechnung mit ausgewiesener Umsatzsteuer. ImmerRuf ist ein geschäftlicher Aufwand und in der Regel vollständig als Betriebsausgabe absetzbar. VAT-registered businesses can reclaim input VAT.

### Data protection & trust

Q: Ist ImmerRuf DSGVO-konform? (Is ImmerRuf GDPR-compliant?)
A: Absolut. Alle Daten werden in der EU verarbeitet und gespeichert. Wir bieten einen Auftragsverarbeitungsvertrag (AVV) an. Details: https://immerruf.de/dsgvo.html

Q: Who is responsible for caller consent to recording?
A: The customer is the data controller for call recordings/transcripts and is responsible for obtaining the necessary consents and providing the legally required announcements. ImmerRuf provides the AVV and EU processing.

Q: What if the AI makes a mistake or misunderstands?
A: AI voice systems are probabilistic and can occasionally misunderstand or produce incorrect information. ImmerRuf is provided on a best-efforts basis. You should run test calls and verify business-critical results (appointments, prices, captured data). The assistant is trained only on the information you provide.

### Comparison

Q: How is ImmerRuf different from an answering machine (Anrufbeantworter)?
A: An answering machine only records a message - most callers leave none and call the next provider. ImmerRuf holds a real conversation, answers questions and books appointments.

Q: How is it different from a call centre / Telefonsekretariat?
A: Call centres are usually billed per minute or per call and often limited to business hours. ImmerRuf has a fixed monthly price and runs 24/7.

Q: How is it different from hiring a receptionist?
A: A receptionist works limited hours, can be sick or on holiday, and costs a German employer roughly €3,900 to €5,400 per month all-in (itemized breakdown: https://immerruf.de/sekretaerin-kosten.html). ImmerRuf answers every call 24/7 at a fixed monthly price.

Q: What does a KI-Anrufbeantworter (AI answering machine) cost? A: A plain answering machine or voicemail is included in virtually every phone contract, so effectively €0/month - but it only records, it does not answer questions or book appointments. What is usually meant by a "KI-Anrufbeantworter" is an assistant that actually answers and books; at ImmerRuf that starts at €99/month. See https://immerruf.de/kosten.html
Q: What is the difference between a Telefonservice (answering service) and an AI phone assistant? A: In Germany "Telefonservice", "Telefonsekretariat" and "Callcenter" are used largely interchangeably for an external provider that answers your calls. They are typically billed per call or per minute, so the monthly total rises with volume, and cover is usually limited to business hours. An AI phone assistant has a fixed monthly price, runs 24/7, and books appointments directly into the calendar. See https://immerruf.de/vergleich.html
Q: Can I build an AI phone assistant myself? A: Technically yes - you would combine a speech-to-text service, an LLM, a text-to-speech voice, telephony/SIP and a calendar integration. Each of those is billed per minute or per token, so cost scales with call volume, and the real expense is engineering time plus ongoing maintenance: prompt tuning, German dialects, failure handling, and a data processing agreement with every sub-processor. Building it yourself makes sense with an in-house dev team; below a few hundred calls a month a ready-made assistant is cheaper. See https://immerruf.de/kosten.html
Q: Does a third-country transfer (Drittlandtransfer) take place? A: Partly. Conversation data, storage and hosting stay in the EU. The language model and the telephony connection currently run partly via US providers, so personal data can leave the EU for those parts; those transfers are based on the EU-US Data Privacy Framework adequacy decision or EU standard contractual clauses under Art. 46 GDPR. Details of sub-processors and storage locations are in the DPA and the privacy policy. See https://immerruf.de/dsgvo.html
Q: How do I get started?
A: Request a callback at https://immerruf.de/contact.html or email hallo@immerruf.de. Setup is done-for-you and you are typically live within one week.

## Glossary (Lexikon)

- KI-Telefonassistent: Eine Software mit Stimme, die ankommende Anrufe selbstständig annimmt, ein natürliches Gespräch führt, Fragen beantwortet und Termine direkt in den Kalender bucht – rund um die Uhr.
- Voicebot / Sprachbot: Ein computergesteuerter Gesprächspartner, der über Sprache mit Anrufern kommuniziert. Oft synonym zum KI-Telefonassistenten verwendet.
- Anrufbeantworter: Ein Gerät oder Dienst, der bei Nichterreichbarkeit eine Ansage abspielt und eine Nachricht aufzeichnet. Führt kein Gespräch und bucht keine Termine.
- Telefonsekretariat / Telefonservice: Ein externer Dienstleister, bei dem Menschen Anrufe in Ihrem Namen annehmen, meist nach Leitfaden und abgerechnet pro Minute oder pro Anruf.
- Rufumleitung: Eine Funktion Ihres Telefonanschlusses, die eingehende Anrufe automatisch an eine andere Nummer weiterleitet – etwa von Ihrer Geschäftsnummer an einen KI-Telefonassistenten.
- IVR (Sprachdialogsystem): Ein automatisiertes Menü, das Anrufer per Tastendruck oder Sprachbefehl durch feste Auswahlmöglichkeiten führt. Folgt einem starren Menübaum statt eines freien Gesprächs.
- Conversational AI: Sammelbegriff für KI-Systeme, die natürliche, frei formulierte Gespräche führen können, statt nur vorgegebene Menüpunkte abzuarbeiten.
- Text-to-Speech (TTS): Technologie, die geschriebenen Text in gesprochene Sprache umwandelt. Verleiht dem Assistenten seine menschlich klingende Stimme.
- Speech-to-Text (STT): Technologie, die gesprochene Sprache in Text umwandelt. Ermöglicht dem Assistenten zu verstehen, was der Anrufer sagt.
- Warm Transfer (Anrufweiterleitung): Eine Weiterleitung, bei der der Assistent den Anruf an einen Menschen übergibt und das Anliegen vorab erklärt, sodass der Anrufer nichts wiederholen muss.
- Auftragsverarbeitungsvertrag (AVV): Ein Vertrag nach DSGVO zwischen Ihnen und einem Dienstleister, der personenbezogene Daten in Ihrem Auftrag verarbeitet.
- DSGVO-Konformität: Die Einhaltung der europäischen Datenschutz-Grundverordnung beim Umgang mit personenbezogenen Daten – etwa Anruferdaten, die ein Telefonassistent verarbeitet.
Full glossary: https://immerruf.de/lexikon.html

## Data protection (DSGVO)

ImmerRuf is GDPR-compliant: all data is processed and stored in the EU, and a data processing
agreement (Auftragsverarbeitungsvertrag, AVV/DPA) is available. Details: https://immerruf.de/dsgvo.html

## All pages

- Home: https://immerruf.de/
- Pricing: https://immerruf.de/preise.html
- What it costs: https://immerruf.de/kosten.html
- Comparison: https://immerruf.de/vergleich.html
- The cost of missed calls: https://immerruf.de/verpasste-anrufe.html
- Case model / worked example: https://immerruf.de/fallstudie.html
- Setup step-by-step: https://immerruf.de/anleitung-einrichtung.html
- Set up call forwarding: https://immerruf.de/rufumleitung-einrichten.html
- GDPR / data protection: https://immerruf.de/dsgvo.html
- Glossary: https://immerruf.de/lexikon.html
- Ratgeber hub: https://immerruf.de/ratgeber.html
- Industries hub: https://immerruf.de/branchen.html
- Contact / callback: https://immerruf.de/contact.html
- Terms (AGB): https://immerruf.de/terms.html
- Privacy policy (Datenschutzerklärung): https://immerruf.de/datenschutz.html
- Imprint (Impressum): https://immerruf.de/impressum.html
- HTML sitemap (every indexable page, grouped): https://immerruf.de/sitemap.html
- XML sitemap index: https://immerruf.de/sitemap.xml

For the complete, up-to-date list of every cost, GDPR, comparison, alternative-to and
industry-problem page (60 URLs total), see the HTML sitemap at
https://immerruf.de/sitemap.html or the XML sitemap index above — this file summarizes
the most important ones inline but the sitemap is the authoritative inventory.

## Contact

- Email: hallo@immerruf.de
- Request a callback: https://immerruf.de/contact.html