Re: system with FXS port

Robert Moskowitz <rgm@xxxxxxxxxxxxxxx> · Fri, 17 Jan 2014 12:54:30 -0500



    On 01/17/2014 12:41 PM, Jared K. Smith
      wrote:

    
          On Fri, Jan 17, 2014 at 11:05 AM,
            Robert Moskowitz <rgm@xxxxxxxxxxxxxxx>
            wrote:

            I was reminded that with
              spandsp, you can get a v32modem to function as an fxs
              port.  Of course this puts the burden for i/o handling on
              your cpu.  Use to do this lots of years ago, and really
              forgot those days.
          
          
        You *can* do this, however you're not
          likely to have great results.  Traditionally this was done to
          function as an FXO port (connected to the central office), but
          this doesn't handle remote disconnect supervision (at least
          the American way of doing far-end disconnect supervision), so
          it's easy get stuck lines.

        
    But I am only using it for fxs for my fax.  My goal is to totally
    drop pstn.  The only justification for pstn is fax.  'efax' via
    scanning is not an option.

    
    And if it does not work, and no hardware developer sees the value of
    arm pbxs with an fxs port, well there is always the SPA-112.

    
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