<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"
xmlns:ns0="http://schemas.microsoft.com/office/2004/12/omml">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 11 (filtered medium)">
<!--[if !mso]>
<style>
v\:* {behavior:url(#default#VML);}
o\:* {behavior:url(#default#VML);}
w\:* {behavior:url(#default#VML);}
.shape {behavior:url(#default#VML);}
</style>
<![endif]--><o:SmartTagType
namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PersonName"/>
<!--[if !mso]>
<style>
st1\:*{behavior:url(#default#ieooui) }
</style>
<![endif]-->
<style>
<!--a:link
{mso-style-priority:99;}
span.MSOHYPERLINK
{mso-style-priority:99;}
a:visited
{mso-style-priority:99;}
span.MSOHYPERLINKFOLLOWED
{mso-style-priority:99;}
/* Font Definitions */
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman";}
a:link, span.MsoHyperlink
{color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal;
font-family:"Times New Roman";
color:#1F497D;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:Arial;
color:navy;}
@page Section1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.Section1
{page:Section1;}
-->
</style>
<!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang=EN-US link=blue vlink=purple>
<div class=Section1>
<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 tabindex=-1>
</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'> asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <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<br>
<b><span style='font-weight:bold'>To:</span></b> '<st1:PersonName w:st="on">Asterisk
Users Mailing List - Non-Commercial Discussion</st1:PersonName>'<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: [asterisk-users]
Occasional call from "asterisk"</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></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'><o:p></o:p></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.<o:p></o:p></span></font></p>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'><o:p> </o:p></span></font></p>
</div>
<div>
<p class=MsoNormal style='mso-margin-top-alt:0in;margin-right:0in;margin-bottom:
12.0pt;margin-left:.5in'><font size=3 face="Times New Roman"><span
style='font-size:12.0pt'>-Bruce<o:p></o:p></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><o:p></o:p></p>
<div>
<div>
<p class=MsoNormal style='margin-left:.5in'><font size=2 color="#1f497d"
face="Times New Roman"><span style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></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>
<o:p></o:p></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:<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></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)...<o:p></o:p></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)...<o:p></o:p></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)...<o:p></o:p></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<o:p></o:p></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<o:p></o:p></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<o:p></o:p></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<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></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.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></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.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></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!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:11.0pt;color:#1F497D'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:11.0pt;color:#1F497D'>Cheers,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color="#1f497d" face="Times New Roman"><span
style='font-size:11.0pt;color:#1F497D'>~Brian<o:p></o:p></span></font></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'>[Danny Nicholas] <o:p></o:p></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'><o:p></o:p></span></font></p>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>