Agreed, Call forwarding on busy or no answer. https://en.wikipedia.org/wiki/Call_forwarding https://en.wikipedia.org/wiki/Call_forwarding Looks easy to set up a

Agreed, Call forwarding on busy or no answer. https://en.wikipedia.org/wiki/Call_forwarding https://en.wikipedia.org/wiki/Call_forwarding Looks easy to set up and could easily be missed on the phone bill.