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Touch-tone input
When Text-to-Speech is used with touchtone input, callers can interrupt, or dial through, the prompt or announcement, just as they can when the prompt has been prerecorded.
If callers have problems dialing through a prompt or announcement with touchtone input, make sure that dial through is enabled. When using dial through, remember to flush all touchtone input from the buffer whenever the application plays an error message.
Spoken input
When Text-to-Speech is used with speech recognition, callers can barge-in during the prompt or announcement. If you have long announcements, you can prompt callers to press a touchtone key or speak when they have heard all of an announcement that they want to hear.
