I signed up online to
www.onetel.co.uk and got a £20 credit for signing up online. Four months later I'm still not paying a bill to them as I use the phone evenings (5p per hour) and weekends (totally free).
As far as I could find out, Onetel were the only company offering this sort of service to cable phone line users. I didn't like the box they supplied to put onto the phone line, as it only goes to one phone, not the extensions in the house, I prefer to dial the (rather long) number preceding a message, telling me to dial the number I want including the area code, followed by the hash key.
Works brilliantly in my house with two teenage daughters, and saves me a fortune in topping up their mobiles!
