<div dir="ltr">We have started to see something similar now. Except it is 2 minute long empty voicemails with return DIDs that route to nowhere.<div><br></div><div>~Jared</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">
On Thu, Oct 3, 2013 at 7:43 AM, Matthew Crocker <span dir="ltr"><<a href="mailto:matthew@corp.crocker.com" target="_blank">matthew@corp.crocker.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div style="word-wrap:break-word"><div><br></div>Automated system trying to probe for auto-attendant and/or voicemail holes?<div><br><div>
<div>--<br>Matthew S. Crocker<br>President<br>Crocker Communications, Inc.<br>PO BOX 710<br>Greenfield, MA 01302-0710<br><br>E: <a href="mailto:matthew@crocker.com" target="_blank">matthew@crocker.com</a><br>P: <a href="tel:%28413%29%20746-2760" value="+14137462760" target="_blank">(413) 746-2760</a><br>
F: <a href="tel:%28413%29%20746-3704" value="+14137463704" target="_blank">(413) 746-3704</a><br>W: <a href="http://www.crocker.com" target="_blank">http://www.crocker.com</a></div><div><br></div><br>
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<br><div><div class="im"><div>On Oct 2, 2013, at 10:31 PM, Brandon Lehmann <<a href="mailto:brandon@bitradius.com" target="_blank">brandon@bitradius.com</a>> wrote:</div><br></div><blockquote type="cite"><div lang="EN-US" link="blue" vlink="purple" style="font-family:Helvetica;font-size:medium;font-style:normal;font-variant:normal;font-weight:normal;letter-spacing:normal;line-height:normal;text-align:-webkit-auto;text-indent:0px;text-transform:none;white-space:normal;word-spacing:0px">
<div><div class="im"><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:9pt;font-family:Helvetica,sans-serif">I’ll have to dig into our logs a bit closer. We’ve been seeing a bunch of 1s voicemails appear from random calling numbers to one of our TFs the last few months. I attributed it to listing the # on our ARIN and RADB entries for our ASN but haven’t had time to find the correlation.<u></u><u></u></span></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:9pt;font-family:Helvetica,sans-serif"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif">
<span style="font-size:9pt;font-family:Helvetica,sans-serif"> </span></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:11pt;font-family:Calibri,sans-serif;color:rgb(31,73,125)"> </span></div>
</div><div style="border-style:none none none solid;border-left-width:1.5pt;border-left-color:blue;padding:0in 0in 0in 4pt"><div class="im"><div><div style="border-style:solid none none;border-top-width:1pt;border-top-color:rgb(181,196,223);padding:3pt 0in 0in">
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><b><span style="font-size:10pt;font-family:Tahoma,sans-serif">From:</span></b><span style="font-size:10pt;font-family:Tahoma,sans-serif"><span> </span>VoiceOps [mailto:<a href="mailto:voiceops-" target="_blank">voiceops-</a><a href="mailto:bounces@voiceops.org" style="color:purple;text-decoration:underline" target="_blank">bounces@voiceops.org</a>]<span> </span><b>On Behalf Of<span> </span></b>Nick Olsen<br>
<b>Sent:</b><span> </span>Wednesday, October 02, 2013 2:54 PM<br><b>To:</b><span> </span>Jay Hennigan<br><b>Cc:</b><span> </span><a href="mailto:voiceops@voiceops.org" style="color:purple;text-decoration:underline" target="_blank">voiceops@voiceops.org</a><br>
<b>Subject:</b><span> </span>Re: [VoiceOps] Strange inbound Calls<u></u><u></u></span></div></div></div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><u></u> <u></u></div>
<div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:10pt;font-family:Tahoma,sans-serif">If the call is answered by a human, They hear nothing on the other side. I will ask our receptionist to allow the call to continue for a minute or so and see if it hangs up at the 60 second mark.<u></u><u></u></span></div>
<div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:10pt;font-family:Tahoma,sans-serif"> </span></div></div></div><div><div class="im"><p class="MsoNormal" style="margin:0in 0in 12pt;font-size:12pt;font-family:'Times New Roman',serif">
<span style="font-size:10pt;font-family:Tahoma,sans-serif">Timing our own IVR. It takes exactly 60 seconds, If you press nothing to get all the way 1 second in to voicemail. As these calls always appear leaving 1 second voicemails.<u></u><u></u></span></p>
</div><div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:10pt;font-family:Tahoma,sans-serif">Nick Olsen<br></span><span style="font-size:10pt;font-family:Arial,sans-serif">Network Operations</span><span style="font-size:10pt;font-family:Tahoma,sans-serif"><u></u><u></u></span></div>
<div><div style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:10pt;font-family:Tahoma,sans-serif">(855) FLSPEED x106<br><br><span style="border:1pt solid windowtext;padding:0in"><span><image001.jpg></span></span><u></u><u></u></span></div>
</div></div><div><div class="h5"><p class="MsoNormal" style="margin:0in 0in 12pt;font-size:12pt;font-family:'Times New Roman',serif"><span style="font-size:10pt;font-family:Tahoma,sans-serif"> </span></p><div class="MsoNormal" align="center" style="margin:0in 0in 0.0001pt;font-size:12pt;font-family:'Times New Roman',serif;text-align:center">
<span style="font-size:10pt;font-family:Tahoma,sans-serif"><hr size="2" width="100%" align="center"></span></div><p class="MsoNormal" style="margin:0in 0in 12pt;font-size:12pt;font-family:'Times New Roman',serif">
<b><span style="font-size:10pt;font-family:Tahoma,sans-serif">From</span></b><span style="font-size:10pt;font-family:Tahoma,sans-serif">: "Jay Hennigan" <<a href="mailto:jay@west.net" style="color:purple;text-decoration:underline" target="_blank">jay@west.net</a>><br>
<b>Sent</b>: Wednesday, October 02, 2013 2:25 PM<br><b>To</b>:<span> </span><a href="mailto:voiceops@voiceops.org" style="color:purple;text-decoration:underline" target="_blank">voiceops@voiceops.org</a><br><b>Subject</b>: Re: [VoiceOps] Strange inbound Calls<br>
<br>On 10/2/13 10:13 AM, Nick Olsen wrote:<br>> Hello Everyone,<br>><span> </span><br>> We've been seeing a lot of strange inbound calls to our toll free<br>> numbers recently. The only thing they have in common is the caller ID<br>
> text is always a city and a state. And the the call duration is 60<br>> seconds on the dot..Every time.<br><br>Are the calls answered by a human? If so, what do they hear? If not<br>and it's an IVR, if you call and say nothing does the call drop in 60<br>
seconds?<br><br>City and state are not uncommon for CNAM. Many CNAM providers will put<br>the city and state of the rate center for the NPA-NXX if caller name<br>isn't available.<br><br>--<br>Jay Hennigan - CCIE #7880 - Network Engineering -<span> </span><a href="mailto:jay@impulse.net" style="color:purple;text-decoration:underline" target="_blank">jay@impulse.net</a><br>
Impulse Internet Service -<span> </span><a href="http://www.impulse.net/" style="color:purple;text-decoration:underline" target="_blank">http://www.impulse.net/</a><br>Your local telephone and internet company - <a href="tel:805%20884-6323" value="+18058846323" target="_blank">805 884-6323</a> - WB6RDV<br>
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