Voice Agent doesn't speak numbers

I'm setting up a voice agent and when I test, it skips over any numbers. Times, pricing, etc. How can this be fixed?

2 Replies

Why the numbers disappear When a Voiceflow agent is rendered as audio (Twilio/Vonage phone channel) the text is passed to a TTS engine.
If a message contains raw digits—but no SSML—the vendor’s default voice may drop them instead of pronouncing them. Fix → add a tiny bit of SSML 1. Open the Message step that should speak the number.
2. Click the </> icon (toggle to SSML view).
3. Wrap the number (or the variable that holds it) in a <say-as> tag:

<speak>
  The total is <say-as interpret-as="currency">$50.00</say-as>.
  Your meeting is at <say-as interpret-as="time">9:30 AM</say-as>.
</speak>

<speak>
  The total is <say-as interpret-as="currency">$50.00</say-as>.
  Your meeting is at <say-as interpret-as="time">9:30 AM</say-as>.
</speak>

• interpret-as="digits" – reads each digit (“five-zero”).
• interpret-as="cardinal" – reads the whole number (“fifty”).
• interpret-as="currency", "time", "date", etc. – for prices, times, dates. 4. Save and test the call again – the agent should now speak the numbers correctly. Tips • If you’re inserting a variable that is stored as a number, cast it to a string first (price_str = price + '') or just reference it inside the SSML tag:
<say-as interpret-as="digits">{{price}}</say-as> • For quick tests you can also write the number in words (“fifty”) but SSML keeps it dynamic and works with variables. More on formatting Message steps & SSML: https://docs.voiceflow.com/docs/message-step Let me know if that solves it! 🚀

VyueDigitalOP•2mo ago

Ok thanks. Where do I find the SSML view to insert the code within an Agent step?

Voice Agent doesn't speak numbers

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