How to make the phone number more audible and understandable in Text-to-Speech

Question: When we give a phone # for them to call back on, what is the best way to enter the text (using TTS) for the phone # to be most understandable. Sometimes the voice seems to rush and run the #s together.

Is it better to:

a. Put a comma or period after each number

b. Use the word and not the number (six instead of 6)

c. Or is there some other way to make the # be spoken a bit slow 2 4 0 9 9 9 1 2 3 4

Answer:

If you have Voicent IVR Studio, you can setup the prompt type as a phone number, and the system will take care of it.

If you want to do it yourself, then a number list with space in between usually works. But the effect depends on the TTS engine you use.