Forgot to mention, my wife has exactly the same problem on her phone.
For the past two weeks or so I have had problems with my Cingular phone whenever I dial toll-free numbers. I usually get a message saying "your call did not go through, 025T." Same message regardless of the number I am dialling
I've tried more than a dozen toll-free numbers with the same result. I typically have to call back 3-5 times before I get through.
Any other numbers work fine. Anyone else having this problem? Cingular denies it exists.
BTW I live in the Houston area but I had a similar experience last week when traveling in New York.