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This approach allows you to use prompts that are best for touchtone entry in one application and those that are best for speech recognition entry in the other.
In many cases, touchtone recognition may be more accurate and cost less than speech recognition. Therefore, you probably want callers with touchtone telephones to use their keypads to interact with the application. To encourage this, start your application with a dial 1 prompt. A dial 1 prompt gives callers a chance to indicate that they have a touchtone telephone, and helps speed the call.
The following figure shows a flowchart for a dial 1 prompt.
