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<p>We do something like this, however we have two pairs of wires.
One pair is RS-485 for control running at 9600 baud. The other
pair is baseband audio which we control through relays on our
intercoms. I can't imaging trying to transmit digitally encoded
audio over an RS485 network. There are just too many issues with
such a setup. <br>
</p>
<p><br>
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<p>cheers,</p>
<p>darryl<br>
</p>
<p><br>
</p>
<br>
<div class="moz-cite-prefix">On 2016-11-02 03:46 PM, Jerry Geis
wrote:<br>
</div>
<blockquote
cite="mid:CABr8-B5GH2a5R6r7fpOjzgnkbyii0+2SXfovDVCJ=xUsspGFyQ@mail.gmail.com"
type="cite">
<div dir="ltr">Hi All,
<div><br>
</div>
<div>The reason for the question was simply that the customer
desired some solution</div>
<div>called an "AOR" or Area of refuge - I think it was.
Basically a call button, microphone and speaker to hear back</div>
<div>with the kicker being "a long distance" the solution has to
run. RS485 is like 4000 feet.</div>
<div><br>
</div>
<div>There are solutions our there apparently that are not built
on asterisk - so I was just trying to find</div>
<div>a solution that potentially worked with asterisk. </div>
<div><br>
</div>
<div>Thanks! </div>
<div><br>
</div>
<div>Jerry</div>
<div class="gmail_extra"><br>
</div>
</div>
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