The AI phone assistant that speaks German

Your phone always picks up.

Call0 answers every call, handles questions and books appointments — around the clock, with a voice that sounds human.

Live-Testanruf

Try it yourself: Call0 calls you.

Free and non-binding. Your number is only used for this one call.

GDPR-compliant No base fee Ready in 2 minutes
Features

Everything your phone should be able to do.

This week Incoming call
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Consultation — Anna M.
Appointment booked · Thu · 2:00 pm
How it works

Reachable in three steps.

No IT project. No call center. Just start.

  1. 1

    Create your assistant

    Describe your business — Call0 turns it into your assistant.

  2. 2

    Connect a number

    Get a new number or simply forward your existing one.

  3. 3

    Calls just happen

    Call0 picks up, helps your customers — and you simply read along.

So klingt es

Eine Stimme, die wie ein Mensch klingt.

Wähle eine Stimme und hör selbst — natürliche Betonung, echtes Tempo, keine Roboter-Pausen. Call0 answers every call, handles questions and books appointments — around the clock, with a voice that sounds human.

Bereit

„Lena“ antippen oder Stimme wählen

Vorschau-Visualisierung. Im echten Anruf spricht Call0 mit dieser Stimme — jetzt Testanruf erhalten.

Integrations

Connected to the tools you already use.

Google Calendar, Outlook, HubSpot, WhatsApp and more — natively integrated. And for everything else, there's the API.

Google CalendarTermine automatisch eintragen
OutlookE-Mail & Kalender synchron
HubSpotLeads & Kontakte pflegen
WhatsAppBestätigungen sofort senden
SalesforceCRM in Echtzeit aktuell
MondayAufgaben & Boards aktualisieren
Und für alles andere: die API. Webhooks, Custom-Aktionen, dein eigenes CRM — alles anbindbar.

Hunderte Anrufe pro Woche — kein verpasster Kunde mehr.

24/7erreichbar
<1 Sek.bis abgenommen
~0,7 Sek.Antwortzeit
6+Integrationen
Pricing

Choose your plan.

Start with a free 3-day trial — no card required. Then a subscription with included minutes that fits you.

Free trial

Try it free for 3 days

No card required. Create assistants, run test calls — and switch to a plan whenever you like.

Start for free

Solo

99 €/month
  • 1.000 minutes included
  • 1 phone number included
  • 200 WhatsApp · 500 emails included
  • 1 concurrent call
  • then 0,15 €/min
Choose plan
Popular

Team

299 €/month
  • 3.000 minutes included
  • 3 phone numbers included
  • 600 WhatsApp · 2000 emails included
  • 3 concurrent calls
  • then 0,12 €/min
Choose plan

Scale

499 €/month
  • 5.000 minutes included
  • 3 phone numbers included
  • 1500 WhatsApp · 5000 emails included
  • 10 concurrent calls
  • then 0,10 €/min
Choose plan

All prices excl. VAT. Overage is billed per minute. Cancel anytime.

FAQ

Frequent questions

What does the assistant sound like?

Natural — like a human. Call0 uses the best AI voices available, and most callers don't notice they're talking to an AI. Get the test call above and hear for yourself.

What happens with complex questions?

You set the rules: for topics the assistant shouldn't handle, it forwards the call to you or your team — or takes a clean note for your callback.

Do I need a new phone number?

No. Simply forward your existing number to Call0 — or get a new number from us. Both take just a few minutes to set up.

Is Call0 GDPR-compliant?

Yes. Call0 operates in compliance with GDPR, and you can sign the data processing agreement (DPA) directly online.

How fast can I get started?

Under 2 minutes: describe your business, pick a voice, done. No IT and no new hardware needed.

What does Call0 cost?

Start with 3 days free — no card needed. Then pick a subscription with included minutes: Solo 99 €, Team 299 €, Scale 499 € per month. Overage is billed by the minute, cancel anytime.

Call0

Ready? Your assistant already is.

Create your assistant in 2 minutes — 3 days free, then the subscription that fits.

Get startedGet a test call first