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.
On this page
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 and Zero Data Retention 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 (13) | German, English, Spanish, French, Italian, Portuguese, Japanese, Korean, Chinese, Bosnian, Serbian, Polish, Turkish |
| 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: October 26, 2026).
| Provider | Purpose | Processing locations |
|---|---|---|
| Supabase Pte. Ltd. | Account management and data storage | Singapore; processing also in the EU and USA |
| Stripe Inc. | Payment processing | USA; international |
| Twilio Inc. | Telephony and SMS | USA; international |
| OpenAI OpCo, LLC | Transcripts, summaries, answer suggestions and processing of supplied content | USA; international |
| Composio Inc. | Customer-connected integrations | USA; depending on the connected service |
| Google LLC | Customer-selected Google services | USA; depending on the selected service |
| Vercel Inc. | Providing the website and web application | USA; international |
| LiveKit, Inc. | Real-time voice transport, running voice agents and AI voice models through LiveKit | USA; international |
| Resend (Plus Five Five, Inc.) | Sending sign-in codes, invitations and notifications | USA; international |
From the privacy policy: “Call0 Inc. is based in the USA. Providers and their subprocessors may also process data outside the EU/EEA, particularly in the USA and Singapore. Transfers rely on an applicable adequacy decision (GDPR Article 45) or EU Standard Contractual Clauses with any necessary supplementary measures (Article 46). Copies of the relevant safeguards are available at support@call0.ai.”
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: October 26, 2026) names 9 service providers, with international processing, including the USA and Singapore. Call0 does not promise processing exclusively in the EU.
Which languages does Call0 speak?
The agent speaks 13 languages: German, English, Spanish, French, Italian, Portuguese, Japanese, Korean, Chinese, Bosnian, Serbian, Polish, Turkish. 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.
Machine-readable at /llms.txt. If an item is not correct, write to support@call0.ai.