Tom Mariner wrote: > > But did it emulate an actual modem or just a DTMF-sender? An alarm just = > > needs to send the touch-tone frequencies as far as I can understand, = > > plus perhaps a digit or two to inform about the alarm type. Unless it's = > > going to broadcast live via an onboard camera and microphone. > > > > The day someone writes PIC code to emulate a 300 bps or even an 1200 bps = > > bidirectonal modem, and distribute the code public domain, THEN I will = > > be impressed. ;-) > > Be impressed - did it 8 years ago on an 8048 at 300 bps for a major alarm > panel manufacturer. One needs bi-directional so the alarm company can modify > parameters from their office. > > Tom Same thing with faxmachines - also remotely adjustable. But that won't impress him - its not public domain! -- Eric van Es | Cape Town, South Africa mailto:vanes@ilink.nis.za | http://www.nis.za/~vanes LOOKING FOR TEMPORARY / HOLIDAY ACCOMODATION? http://www.nis.za/~vanes/accom.htm