Bob has been thinking about trying some form of VOIP (internet telephony) to save on his phone bills. I had heard good things about Skype so he installed that. They offer fairly reasonable rates to most countries and free calls to other PC users. I installed it on my Linux box too. That worked, but needed some help from the forums to get the sound working. We tried some PC->PC calls, but it kept having problems with delays that gradually got worse. The sound quality was good though.

Simon pointed me at 18866 who offer 1p UK calls and similar internation rates on a normal telephone. That may be worth a play to cut our bill, but it's never that massive anyway.