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AI phone agents in Finnish

ThunderPhone supports Finnish across the customer experience: agents speak and understand Finnish on calls, the dashboard has a Finnish interface, and the docs site has a dedicated Finnish edition. Finnish is one of the platform's 47 supported voice languages, with eight compatible voices in the current catalog.

Finnish voice availability and pricing

The current catalog includes eight voices that support Finnish, among them two premium Finnish voices, Milla and Matti.

Finnish uses a premium language path at +3¢ per minute, which applies to all Finnish-compatible voices. That makes the engine-plus-language rate:

  • Spark: 2¢ + 3¢ = 5¢/minute
  • Bolt: 5¢ + 3¢ = 8¢/minute
  • Storm: 9¢ + 3¢ = 12¢/minute

Pricing is pay as you go with no subscription. These illustrative figures exclude telephony and any other optional charges; the agent builder shows the current all-in rate as settings change.

Preview candidate voices in the builder, then test them against real calls. Finnish inflects names and addresses heavily, so evaluate case endings, compound words, numbers read aloud, English loanwords, and any business-specific terminology your callers use.

Finnish in the dashboard and documentation

Finnish is a shipped dashboard locale, not just a call setting. A team can build agents, review calls and transcripts, and operate the account entirely in the Finnish interface.

ThunderPhone also publishes a dedicated Finnish documentation edition on its docs site, giving Finnish-speaking builders localized product guidance alongside the Finnish-speaking agent experience.

Finnish and English in one call

An agent can start in Finnish and switch automatically when a caller moves into a configured additional language such as English or Swedish — and switch back when the caller returns to Finnish. The reverse also works: an English-first line can add Finnish.

The chosen voice must support every selected language. Test realistic switching rather than assuming every mixed-language phrase behaves the same way, particularly names, street addresses, and technical terms spoken across languages.

Sample Finnish call experience

The following flow is written in English to describe the caller experience.

Agent starts in Finnish: Greets the caller, identifies the business, and asks how it can help.

Caller answers in Finnish: Explains that they want to move next week's service appointment.

Agent continues in Finnish: Confirms the caller's name, looks up the approved scheduling action, and offers two available times.

Caller switches to English: "Actually, could you email the confirmation to my work address?"

Agent switches to English: Repeats the email address back and confirms where the notice will be sent.

Caller returns to Finnish: Confirms the new time.

Agent returns to Finnish: Repeats the final date and time, then ends the call according to the business's instructions.

The caller stays on one line with one agent; no separate number or language-menu choice is required.

Build and test a Finnish agent

  1. Set Finnish as the primary language, or add it to an agent's additional languages.
  2. Choose one of the eight voices that supports the full selected language set.
  3. Confirm the displayed +3¢ per-minute language rate in the builder.
  4. Add reviewed Finnish prompt instructions and source content where exact wording matters.
  5. Run Finnish-only and mixed Finnish-English simulations.
  6. Review pronunciation, transcripts, tool actions, transfers, and fallback behavior before deployment.

Frequently asked questions

Does ThunderPhone support Finnish voice calls?

Yes. Finnish is one of ThunderPhone's 47 supported voice languages and currently has eight compatible voices in the catalog.

How much does Finnish cost?

Finnish adds 3¢ per minute to the selected engine rate. The engine-plus-language rate is therefore 5¢ on Spark, 8¢ on Bolt, or 12¢ on Storm, before telephony and other optional charges.

Are premium Finnish voices available?

Yes. The catalog currently lists two premium Finnish voices, Milla and Matti, alongside the multilingual Finnish-compatible voices. All Finnish-compatible voices are on the +3¢ premium language path.

Is the dashboard available in Finnish?

Yes. Finnish is a shipped dashboard locale.

Are the ThunderPhone docs available in Finnish?

Yes. ThunderPhone publishes a dedicated Finnish documentation edition on its docs site.

Can a Finnish agent switch to English during a call?

Yes. Add English as an additional language and choose a voice that supports both. The agent switches automatically when the caller changes language mid-call.