I am on Freeserve Time; 24/7 access for £10 per month, with a phone gizmo to connect you to their network for non-local calls.In effect the first £10 of phone calls is free, as you have already paid for it. It takes forever to get on to Freeserve Time as they are rationing new customers. Once I got on I had a modem line installed, but Freeserve did not recognise my caller ID. It took over two months, and many lies from their operators before I was finally connected.
It seems a bit slow at times, but at least I have my costs under control.