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The Voices page is the catalogue of every text-to-speech voice available to your agents, across all supported providers. The voice you pick shapes how callers perceive the agent more than almost anything except the prompt.

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Browsing the catalogue

The Voices catalogue with provider tabs, filters, recommended voices, and the voice listThe Voices catalogue with provider tabs, filters, recommended voices, and the voice list
Filter the catalogue by:
  • Provider — the tabs across the top. Each TTS provider offers different voices, languages, and latency characteristics.
  • Language — match the language your agent speaks. Voices are available for English and major Indian languages (Hindi, Tamil, Telugu, Kannada, Malayalam, Bengali, Gujarati, Marathi, Punjabi, and more).
  • Gender, accent, and types — descriptive qualities like conversational, professional, or modulated.
Every voice has a preview button — always listen before assigning. A recommended voices strip at the top surfaces voices that work well for phone audio, and the same tags appear against each row in the list. Each row also shows the voice ID, with a copy button — that’s the value to paste when you set a voice by ID on the agent’s Advanced tab. Mark voices as favourites (the star) to build a shortlist; the Favourites filter narrows the catalogue down to them.

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Assigning a voice to an agent

Select a voice from the catalogue, or pick it directly in the agent’s Advanced → Text-to-Speech section.

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Pronunciation rules

Under Voices → Pronunciation, you can define account-wide pronunciation overrides — a word and how it should be spoken:
The pronunciation dictionary listing words and how they should be spokenThe pronunciation dictionary listing words and how they should be spoken
Add Entry takes the text and the pronunciation — either a respelling (“oss-vee”) or the letters spaced out so they’re read individually (“A-M-D”), or the full phrase an abbreviation stands for (“Date of Birth”). Rules apply to every agent in your account, which keeps brand names, product names, and abbreviations consistent across all voices, and edits sync to ElevenLabs and Cartesia automatically. Add a rule whenever you hear an agent mangle a name in a recording.
Test your chosen voice with your actual prompt in the web-call playground, not just the preview clip — some voices that sound great reading a sample sentence stumble on numbers, amounts, or code-mixed Hindi-English.