Sprint HTC Hero :: Dialing Speed Tone Length

I normally set up call forwarding from my home phone number to my cell phone by speed-dialing a special sting of numbers from my cell phone. Once the computer on the other side answers, the cell phone sends all the correct codes, including the number where I wish my forwarded calls to go.With my newly bought HTC Hero (Sprint), this doesn't seem to work, because the automatically dialed tones are much too fast and too short. I've tried putting a "P" (for pause) between each digit, but it doesn't help.Other cell phones provide way to select between short and long tones, but apparently the Hero does not.Is there a way to slow down the dialing string so that it can be read by the phone company's computer? Obviously, I could manually key in each digit, but that's really not a good solution.