XPost: sci.electronics.repair   
   From: Mycroft_B@yahoo.com   
      
   On Tue, 31 Jul 2007 17:47:53 -0400, Stephen J. Rush    
   wrote:   
      
   > On Tue, 31 Jul 2007 20:37:13 +0000, Joy wrote:   
   >   
   >> Does anyone know where I could buy a cheap DTMF tone generator?   
   >> I think that's what they are called. They used to be used to enter touch   
   >> tone phone sounds into the receivers of dial pay phones so you could   
   >> access your answering machine.   
   >>   
   >> I know someone who only has rotary phones (she claims they are the only   
   >> ones that work with her hearing aids) and is moving to a place where the   
   >> main door can be remotely opened by pressing a key on her phone. Since   
   >> she doesn't have a touch tone phone, I thought a portable tone   
   >> generator might work.  Radio Shack doesn't carry them and I don't know   
   >> where else to look.   
   >   
   > The first generation of electronic phones didn't play well with   
   > inductive-coupled hearing aids, but the newer ones do, especially if you   
   > buy one of the major brands.  Your friend should go shopping for a new   
   > phone.  With rotary phones practically extinct, I doubt that anyone still   
   > sells portable DTMF keypads.   
      
   Thank you for that information. I'm sure you are correct. But the dial   
   phones she owns also has a built-in amplifier in the handset which is   
   QUITE loud. I haven't seen normal phones that loud even with volume   
   controls.   
      
   Thanks. Unless I find a cheap dialer, I'm thinking my idea of an old   
   cordless phone may work.   
      
   Joy   
      
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