Data sheet
Call0 in facts
Call0 is an AI phone assistant for small and medium-sized businesses: it answers calls, replies to questions from approved knowledge, books appointments in the connected calendar, hands over to people and summarises every conversation.
Last updated: 6 October 2026
Provider
| Feature | Detail |
|---|---|
| Provider | |
| Legal form | |
| Address | |
| Contact | |
| Website | www.call0.ai |
| Customers | |
| German VAT ID |
Product
| Feature | Detail |
|---|---|
| Category | |
| Setup | |
| Free trial | |
| Phone | |
| Phone number | |
| AI disclosure | |
| Integrations | |
| Migration | Existing ElevenLabs agents can be imported in the dashboard |
Plans and limits
| Plan | Per month | Per year | Minutes included | Concurrent calls | Each additional minute | Phone numbers |
|---|---|---|---|---|---|---|
| Launch | €110 | €1,188 | 700 | 3 | €0.16 | 1 |
| Growth | €220 | €2,388 | 1,500 | 5 | €0.14 | 1 |
| Scale | €550 | €5,988 | 4,000 | 10 | €0.12 | 2 |
| Item | Detail |
|---|---|
| Annual payment | annual amount in advance, at least 1 monthly fee less than 12 monthly fees |
| Monthly payment | Can be cancelled monthly |
| Additional phone number | €15 per month |
| Browser test minutes in paid plans | 30 per month |
| Enterprise | Custom terms on request |
| Prices | Net, plus VAT |
Email assistant: plans
| Plan | Per month | Per year | Yearly, per month | Emails per month | Mailboxes |
|---|---|---|---|---|---|
| Launch | €89 | €948 | €79 | 500 | 1 |
| Growth | €220 | €2,388 | €199 | 2,000 | 3 |
| Scale | €550 | €5,988 | €499 | 6,000 | 10 |
Languages
| Area | Languages |
|---|---|
| Languages the agent speaks on the phone (12) | German, English, Spanish, French, Italian, Portuguese, Japanese, Korean, Chinese, Bosnian, Serbian, Polish |
| Languages of website and dashboard (12) | English, German, Spanish, French, Italian, Portuguese, Japanese, Korean, Chinese, Bosnian, Serbian, Polish |
Data processing
Service providers and processing locations as named in the privacy policy (Last updated: September 20, 2026).
| Provider | Purpose | Processing locations |
|---|---|---|
| Supabase Inc. | Database and sign-in | Ireland |
| Stripe Inc. | Payment processing | Worldwide, depending on the payment route |
| Twilio Inc. | Telephony and SMS | USA and worldwide connection networks |
| OpenAI OpCo, LLC | Understanding speech and content, generating replies and analysing conversations | Worldwide; not limited to the EU |
| Composio Inc. | Connecting email, calendars and other selected services | Depending on the connected service |
| Google LLC | Google sign-in and selected Google services | Worldwide, depending on the selected service |
| Vercel Inc. | Website hosting and previews of submitted websites | USA; website previews in France; worldwide delivery |
| Railway Corporation | Hosting telephony and communication services | USA and the Netherlands; worldwide connection networks |
From the privacy policy: “Data may be transferred to the USA and other countries outside the EEA. We use an applicable adequacy decision or agreed EU Standard Contractual Clauses, with additional safeguards where needed.”
What Call0 does not offer
- No data processing exclusively in the EU: the privacy policy also names the USA and worldwide processing.
- No provider based in the EU: the contracting party is Call0 Inc. in the USA.
- No contracts with consumers.
- No phone number in the Free plan.
- WhatsApp cannot currently be activated.
Quick questions
What is Call0?
Call0 is an AI phone assistant for small and medium-sized businesses: it answers calls, replies to questions from approved knowledge, books appointments in the connected calendar, hands over to people and summarises every conversation.
Who is the provider of Call0?
Call0 Inc., 447 Broadway, 2nd Floor Suite #3389, New York, NY 10013, USA. Contact: support@call0.ai.
What does Call0 cost?
Launch: €110 per month with 700 minutes; Growth: €220 per month with 1,500 minutes; Scale: €550 per month with 4,000 minutes. All prices are net. The trial with 15 minutes is free.
Where does Call0 process data?
The privacy policy (Last updated: September 20, 2026) names 8 service providers, among others in Ireland, the USA, the Netherlands and worldwide. Call0 does not promise processing exclusively in the EU.
Which languages does Call0 speak?
The agent speaks 12 languages: German, English, Spanish, French, Italian, Portuguese, Japanese, Korean, Chinese, Bosnian, Serbian, Polish. The website and dashboard are available in 12 languages.
Does Call0 say on the phone that an AI is speaking?
Yes. At the start of every call, Call0 gives an AI notice. Under the terms and conditions it must not be deactivated.
Read on: Costs at a glance · Providers compared · Glossary
Machine-readable at /llms.txt. If an item is not correct, write to support@call0.ai.