<html><div style='background-color:'><DIV class=RTE><FONT style="FONT-SIZE: 11px; FONT-FAMILY: tahoma,sans-serif">From: <I>Stephen Bosch <posting@vodacomm.ca></I><BR>>Lee Jenkins wrote:<BR>> > I forgot to mention that the one thing that seems to be consistent is<BR>> > that I can get the zap line to reset and dialout again correctly by<BR>> > calling into the system on that zap line, dialing and extension and<BR>> > allowing the extension to hangup on the caller first.<BR>> ><BR>> > Then it will dial out again. Odd.<BR>><BR>>Cisco has quite a bit of material on this subject (why should they<BR>>special? I'll bet their telephony stuff is plagued by this problem too).<BR></FONT></DIV>
<DIV class=RTE><FONT style="FONT-SIZE: 11px; FONT-FAMILY: tahoma,sans-serif">Stephen: have you checked out this Asterisk documentation? <A href="http://www.voip-info.org/wiki/index.php?page=Asterisk+Disconnect+Supervision">http://www.voip-info.org/wiki/index.php?page=Asterisk+Disconnect+Supervision</A> From reading this page, the conclusion is the same as the Cisco pages. You need telco to provide you with supervision.</FONT></DIV>
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<DIV class=RTE><FONT style="FONT-SIZE: 11px; FONT-FAMILY: tahoma,sans-serif">Yuan Liu</DIV></FONT>
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<DIV class=RTE><FONT style="FONT-SIZE: 11px; FONT-FAMILY: tahoma,sans-serif">>This document describes different kinds of supervisory disconnect<BR>>signalling:<BR>><BR>>"Understanding FXO Disconnect Problem"<BR>><BR>>http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800ae2d1.shtml<BR>><BR>>This one provides a good summary of signalling:<BR>><BR>>http://www.cisco.com/en/US/tech/tk652/tk653/technologies_tech_note09186a00800a6210.shtml#Topic3A<BR>><BR>>I think the problem comes down to knowing what kind of signalling the<BR>>telco is using (if it is using any at all) and then configuring the TDM<BR>>accordingly.<BR>><BR>>I wonder if anyone has had any luck getting that kind of information<BR>>from any ILEC.<BR>><BR>>-Stephen-<BR></DIV></FONT></div></html>