I've got a Sony Z520a. A TSX with HFL. They worked fine for a few weeks. Then without warning it started doing this: Every time I dial-- and every time I answer an incoming-- the call is automatically switched to the phone. I could issue a "transfer" command each time but I'd like to fix it. I can't see any setting on phone or HFL that seem relevant. Oh-- this doesn't happen with other phones. No help from the Acura dealer (it's obviously a "phone' problem.) I have found a number of reports of people having similar problems with different cars and with different phones-- but no solutions.

Please help! Thanks

Rick