I wonder if you can test to see if this happens if you had an analogue phone set connected. And if it doesn't then I am wondering why Asterisk or Sangoma card is so sensitive and maybe the sensor can be set a bit higher so these calls don't end-up ringing like they don't if an analogue phone set was connected to the line (at least that was my case).<div>
<br></div><div>-Bruce<br><br><div class="gmail_quote">On Mon, Apr 11, 2011 at 9:52 AM, Danny Nicholas <span dir="ltr"><<a href="mailto:danny@debsinc.com">danny@debsinc.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<div lang="EN-US" link="blue" vlink="purple">
<div>
<div style="border:none;border-left:solid blue 1.5pt;padding:0in 0in 0in 4.0pt">
<div>
<div class="MsoNormal" align="center" style="text-align:center"><font size="3" face="Times New Roman"><span style="font-size:12.0pt">
<hr size="2" width="100%" align="center">
</span></font></div>
<p class="MsoNormal"><b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:Tahoma;font-weight:bold">From:</span></font></b><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:Tahoma"> <a href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">asterisk-users-bounces@lists.digium.com</a>
[mailto:<a href="mailto:asterisk-users-bounces@lists.digium.com" target="_blank">asterisk-users-bounces@lists.digium.com</a>] <b><span style="font-weight:bold">On Behalf Of </span></b>Brian Henning<br>
<b><span style="font-weight:bold">Sent:</span></b> Monday, April 11, 2011 8:47
AM</span></font></p><div class="im"><font size="2" face="Tahoma"><br>
<b><span style="font-weight:bold">To:</span></b> 'Asterisk
Users Mailing List - Non-Commercial Discussion'<br>
</font></div><font size="2" face="Tahoma"><b><span style="font-weight:bold">Subject:</span></b> Re: [asterisk-users]
Occasional call from "asterisk"</font><p></p>
</div><div><div></div><div class="h5">
<p class="MsoNormal"><font size="3" face="Times New Roman"><span style="font-size:12.0pt"> </span></font></p>
<p class="MsoNormal" style="margin-bottom:12.0pt"><font size="2" face="Tahoma"><span style="font-size:10.0pt;font-family:Tahoma">Bruce B said:</span></font><font color="#1f497d"><span style="color:#1F497D"></span></font></p>
<p class="MsoNormal" style="margin-left:.5in"><font size="3" face="Times New Roman"><span style="font-size:12.0pt">We experience exact same thing on DAHDI with Sangoma
USB FXO device on short circuited lines. Phantom calls are actually due to a
short in the lines that happen occasionally.</span></font></p>
<div>
<p class="MsoNormal" style="margin-left:.5in"><font size="3" face="Times New Roman"><span style="font-size:12.0pt"> </span></font></p>
</div>
</div></div><div>
<p class="MsoNormal" style="margin-right:0in;margin-bottom:12.0pt;margin-left:.5in"><font size="3" face="Times New Roman"><span style="font-size:12.0pt">-Bruce</span></font></p>
<div>
<p class="MsoNormal"><font size="3" color="#1f497d" face="Times New Roman"><span style="font-size:12.0pt;color:#1F497D">Also,</span></font> Warren Selby <font color="#1f497d"><span style="color:#1F497D">said:</span></font></p>
<div>
<div><div><div></div><div class="h5">
<p class="MsoNormal" style="margin-left:.5in"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D"> </span></font></p>
<p class="MsoNormal" style="margin-left:.5in"><font size="3" face="Times New Roman"><span style="font-size:12.0pt">I've seen this on cases where a "phantom"
call comes in on a DAHDI channel - these calls were the results of faulty
wiring on the part of the telco. Check your logs for any errors on your
DAHDI channels around the time of the "ghost" calls. <br>
<br>
It could also be a case of someone calls in and then hangs up before the call
is actually passed to asterisk, and the telco is just slow to hangup the
call. <br>
</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">Hmmmm. I do see this in the
/var/log/asterisk/messages log:</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D"> </span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">[Apr 5 00:05:36] NOTICE[9579]
chan_dahdi.c: Got event 4 (Alarm)...</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">[Apr 5 00:05:38] NOTICE[9579]
chan_dahdi.c: Got event 5 (No more alarm)...</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">[Apr 5 00:05:38] NOTICE[9579]
chan_dahdi.c: Got event 17 (Polarity Reversal)...</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">[Apr 5 00:05:41] WARNING[2400]
chan_dahdi.c: Detected alarm on channel 3: Red Alarm</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">[Apr 5 00:05:42] NOTICE[2400]
chan_dahdi.c: Alarm cleared on channel 3</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">[Apr 5 00:05:51] WARNING[2400]
chan_dahdi.c: Detected alarm on channel 2: Red Alarm</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">[Apr 5 00:05:53] NOTICE[2400]
chan_dahdi.c: Alarm cleared on channel 2</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D"> </span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">…and it appears to coincide
directly with an ‘asterisk’ entry in my SIP phone’s missed
call log.</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D"> </span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">Our wiring is sketchy; this is known at
our facility. Some years ago a backhoe severed the entire trunk and the
repair work was of questionable quality. Also our service entry point /
punch-down area is a rat’s nest (one building and service is shared by
three companies). I guess I can chalk this behavior up to the wiring.</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D"> </span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">Thanks for the input!</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D"> </span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">Cheers,</span></font></p>
<p class="MsoNormal"><font size="2" color="#1f497d" face="Times New Roman"><span style="font-size:11.0pt;color:#1F497D">~Brian</span></font></p>
</div></div><p class="MsoNormal"><b><i><font size="2" color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold;font-style:italic">[Danny Nicholas] </span></font></i></b></p>
<p class="MsoNormal"><b><i><font size="2" color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy;font-weight:bold;font-style:italic">I’ll add another vote to “shoot the phone
company” – our wiring goes to heck whenever it rains and we can
expect a few ‘phantom calls” from Asterisk.</span></font></i></b><font size="2" color="navy" face="Arial"><span style="font-size:10.0pt;font-family:Arial;color:navy"></span></font></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<br>--<br>
_____________________________________________________________________<br>
-- Bandwidth and Colocation Provided by <a href="http://www.api-digital.com" target="_blank">http://www.api-digital.com</a> --<br>
New to Asterisk? Join us for a live introductory webinar every Thurs:<br>
<a href="http://www.asterisk.org/hello" target="_blank">http://www.asterisk.org/hello</a><br>
<br>
asterisk-users mailing list<br>
To UNSUBSCRIBE or update options visit:<br>
<a href="http://lists.digium.com/mailman/listinfo/asterisk-users" target="_blank">http://lists.digium.com/mailman/listinfo/asterisk-users</a><br></blockquote></div><br></div>