[taf2]

You'd have to split the mp3 on your end. then it's simple just:

<Say>message</Say>

<Play>part1.mp3</Play>

<Say>message</Say>

<Play>part2.mp3</Play>

...

etc...

But I could be missing the point of your question?

[mikelbring]

That's what I feared. Didn't know if there was a way to do like a delayed <Say> into a <Play>