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In situations where you want callers to respond with touchtone input for "yes" or "no," ask them to press 1 for yes or 2 for no. For example:
"If this is correct, press `1'. If not, press `2'."
It is best to instruct callers to press 1 and 2, although you may want to use 1 and 0. Even if you prompt callers to press only 1 and 2, you can set up your application to accept additional numbers. For example, 1 for yes and 2 and 0 for no. Whatever numbers you use to represent yes and no, use the same numbers throughout the application. Do not confuse callers by using 2 for no in one place and 0 for no in another.
