The Say Var node uses an automated voice to repeat variables to callers. The types of variables you can choose from include individual digits, dates, numeric values, and individual letters.
There is also an option for text-to-speech, which allows you to enter words, phrases, or even sentences that the automated voice will repeat back to the caller. Keep in mind that extra charges may apply if you enable text-to-speech.
Finally, the Say Var node also has options for including audio files that play before or after the automated voice.
The Say Var node is particularly useful for confirming input from callers. For example, if you have a Get Input node that asks callers to enter a zip code, you can use the Say Var node to repeat back the zip codes.