How do you add the voice saying the numbers on the razr v3xx Cingular phone?

i was wondering how you add the voice saying the numbers you push on a razr v3xx phone with a cingular plan. like, when you dial a number, and say you press 5, when you press five, you'll be able to hear a voice say 5. its a razr v3xx. i cant figure it out. Help!How do you add the voice saying the numbers on the razr v3xx Cingular phone?
I really dont think that that razr has that option.. but if it did it would be under settings%26gt;phone options%26gt;dial tones. Good luck. :]

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