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Generally you can tell by your bill :)<br><br>
if the line is called a trunk, it will be groundstart, if it is called a
line it will be loopstart.<br><br>
around here trunks are a few bucks more a piece with absolutely no value
add that I can see.<br><br>
<br><br>
<br>
At 04:05 PM 6/17/2003 -0700, you wrote:<br>
<blockquote type=cite class=cite cite><font size=2>Hello
Astrites,</font><br>
<br>
<font size=2>I was just about to send out a long email about not being
able to detect hang-up with my CAC II FXO module on my PSTN POTS
lines. I had tried many configurations. I had attached a
toner to the line to see if I was getting this "disconnect
supervision" signal after hang-up. (toner has a line powered
light in the off position) It seemed that I was getting the signal,
as:</font><br>
<br>
<font size=2> The light was steady on
onhook</font><br>
<font size=2> When the line rang the light
dimmed.</font><br>
<font size=2> When I picked up the line stayed dim (If
I remember correctly)</font><br>
<font size=2> When the other end hung up the light
stayed on</font><br>
<font size=2> Then turned off momentarily a few seconds
later. (I suspected this was "disconnect
supervision")</font><br>
<br>
<font size=2>Anyway asterisk never detected hang-up. Everything
else worked. I was frustrated as hell.</font><br>
<br>
<font size=2>After a few days of trying everything, I tried to set my CAC
II FXO module to Groundstart and configured zaptel.conf and zapata.conf
to groundstart signaling.</font><br>
<br>
<font size=2>Voila! Everything work!</font><br>
<br>
<font size=2>The question is how does groundstart and loopstart
work? How was I able to have a somewhat working system using
loopstart when it seems that the phone company signaling was
groundstart? Can I assume that my lines are indeed
groundstart?</font><br>
<br>
<font size=2>I am really happy that it works. I can now begin the
process of deployment with a much greater feeling of
security.</font><br>
<br>
<font size=2>Jason</font><br>
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