Is there a way to convert a telephone ring signal into something I can pump into my intercom system AUX line input? I want to turn off all my phone ringers and just have a very pleasant sound come from the intercom speaker in each room when the phone rings. Ultimatly I want it to announce who is calling from a database and not even ring the phone if someone is not in the database or on my reject list. I know you can do this with Homeseer and the optional Homeseer phone. You also need to buy a $100 modem to ensure that it works per Homeseer. Has anyone ever setup a DIY rig like this.