ive got broadband on my home pc

but use supernet to dial up on my PDA and mobile... but it come up with message saying that the phonenumber is changing and I got to reinstall stuff.

BUT... i only have the number as i used to be on dial up about 6 years ago and i took it out of the internet connections things? so now im on broadband and have no modem for dial up i cant get one?

are there any options or things you can use - i.e. a generic dial up number? just want a regular local rate number to dial to get my online when on the move!