I sat here one day and got the start of the patter on my home phone, 5 minutes later it was the work line, and 2 minutes after that it was on the fax line.
TPS works with most, but the latest technology means the computer does the dialling, usually from abroad so TPS can't touch them!, and that's why you get that silent pause when you answer, while the "salesman" comes on the line.
Still, at least I learned something that day!