Hallo greysts, yes we need both phones for "voice calls" as you put it. (I also don't understand why I don't get email alerts for replies) We don't have PCs we have Macs here. I'm not getting very far with my understanding of how committing to Broadband will decrease the phone bills. I have been onto the BT site and signed up for detailed logging/calls analysis, call it what you will. I'm sure this is a learning curve which other people have climbed so that's why I've appeared here.