Tutorials: Voice Widget: Say/Play

The Say/Play widget goes under the voice category in missio™ Canvas.

Introduction

Required access: Voxtelesys Portal

The Say/Play widget plays an audio file, says text-to-speech (TTS), or plays DTMF tones to the user. If playing an audio file, the URL must be publicly available and return an MP3 or WAV file. Additionally, the response Cache-Control header is honored if provided. To reduce latency caused by download times, it is recommended to provide the Cache-Control header. Once cached, the file will be locally retrieved until it becomes stale.

If playing DTMF tones, the tones will be injected into the call which can be useful when testing IVRs with a known call flow structure.

This widget converts text to speech (TTS) and plays back the generated audio to the user. Currently supported TTS engines include AWS. The call is billed for the length of the Text, in 100 character intervals. Pricing is dependent on the engine used for TTS synthesis.

You will want to place the answer call widget at the front of the flow if you plan on collecting input/directing the caller around.

*Disclaimer: You will need to have Voice API enabled on your account to do this you will need to open a ticket with support.

Last Updated: 8/21/2026

Add the Widget

step 1, add the widget

To use the widget simply click and drag it into the canvas.

Name the Widget (Optional)

step 2: name the widget

Note that naming the widget can help identify it with other tools later on. It is case sensitive, does not accept spaces or dashes

Configure the Widget

The Say/Play widget has the following configuration abilities:

Action Type

Say Text: This action will allow you to enter text and use our voice engine to play it for your customers

Play Audio: This action allows you to redirect the widget to a URL to play a message

Play Digits: The actions will say back the digits you specify (useful for confirming a caller input)

widget settings with enable translation activated for say play

Say Text Action

Say Text

If you select the Say Text action then you will be prompted to enter in the message

Language

Select from our support languages

Voice

Select from our built-in voices

Enable Translation (optional)

Displays the options for translation. The text that will be translated is "Say Text"

Language Model (optional)

The type of translation model and vendor to use. Currently we only support Google as a vendor. Text is billed in 100 character intervals and pricing is based on the model selected.

[Google] Large Language Model: use Google’s LLM to translate text. The LLM supports fewer language pairs than the NMT model, but large language models tend to generate more natural sounding translations.
[Google] Neural Machine Translation: use Google’s NMT model. The NMT model supports many more language pairs, but may not be as natural sounding as a LLM.

Translate From (required if Language Model is selected)

The language to translate from. The input text should be typed in this language. Automatic language detection is only supported if the user chooses to use the NMT model.

Translate To (required if Language Model is selected)

The language to translate to.

Loop(s)

The number of times the text is repeated.