<html>
<head>
<meta content="text/html; charset=windows-1252"
http-equiv="Content-Type">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<div class="moz-cite-prefix">On 7/6/15 5:53 PM, Jamie Rees wrote:<br>
</div>
<blockquote cite="mid:02f601d0b836$3a0dc4b0$ae294e10$@gmlnt.com"
type="cite">
<meta http-equiv="Content-Type" content="text/html;
charset=windows-1252">
<meta name="Generator" content="Microsoft Word 15 (filtered
medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:#0563C1;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:#954F72;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri",sans-serif;
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></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]-->
<div class="WordSection1">
<p class="MsoNormal">Hello folks,<br>
<br>
We have an issue with several Cisco SPA512G phones connected
to an Asterisk platform where several users hear loud, random
beeps during calls to external recipients. The noises are akin
to button press tones, are very loud and a significant
annoyance. <br>
<br>
I've tried changing the DTMF tones on the phones (512G's
running firmware 7.5.5) from In-Band to every other
possibility, but this hasn't helped at all. The provider has
suggested RFC2833 out-of-band, but the Cisco manuals do not
clearly state which setting this is on the handsets.<br>
<br>
I have enabled DTMF logging and spoken to the SIP provider,
but they couldn't really help much. I presume the issue is
local to our phone system but other than the logs below, have
nothing to go on:<br>
<br>
[2015-06-10 09:32:26] DTMF[3280][C-0000c5a1] channel.c: DTMF
begin '2' received on SIP/sip-out-00021c6d<br>
[2015-06-10 09:32:26] DTMF[3280][C-0000c5a1] channel.c: DTMF
begin passthrough '2' on SIP/sip-out-00021c6d<br>
[2015-06-10 09:32:26] DTMF[3280][C-0000c5a1] channel.c: DTMF
end '2' received on SIP/sip-out-00021c6d, duration 200 ms<br>
[2015-06-10 09:32:26] DTMF[3280][C-0000c5a1] channel.c: DTMF
end accepted with begin '2' on SIP/sip-out-00021c6d<br>
[2015-06-10 09:32:26] DTMF[3280][C-0000c5a1] channel.c: DTMF
end passthrough '2' on SIP/sip-out-00021c6d<br>
[2015-06-10 10:07:10] DTMF[5134][C-0000c5b6] channel.c: DTMF
begin '3' received on SIP/209-00021cac<br>
[2015-06-10 10:07:10] DTMF[5134][C-0000c5b6] channel.c: DTMF
begin passthrough '3' on SIP/209-00021cac<br>
[2015-06-10 10:07:10] DTMF[5134][C-0000c5b6] channel.c: DTMF
end '3' received on SIP/209-00021cac, duration 90 ms<br>
[2015-06-10 10:07:10] DTMF[5134][C-0000c5b6] channel.c: DTMF
end accepted with begin '3' on SIP/209-00021cac<br>
[2015-06-10 10:07:10] DTMF[5134][C-0000c5b6] channel.c: DTMF
end '3' detected to have actual duration 78 on the wire,
emulation will be triggered on SIP/209-00021cac<br>
[2015-06-10 10:07:10] DTMF[5134][C-0000c5b6] channel.c: DTMF
end '3' has duration 78 but want minimum 80, emulating on
SIP/209-00021cac<br>
[2015-06-10 10:07:10] DTMF[5134][C-0000c5b6] channel.c: DTMF
end emulation of '3' queued on SIP/209-00021cac<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Can someone please provide any tips? </p>
</div>
</blockquote>
Yes, I have had this annoyance happen to me before. It is very
frustrating. In order to rule out the SIP Provider, I suggest you
record the call. If the beep is not heard in the recording but only
by the end user on the Cisco Phone, then its a phone issue. The
phone is confusing audio with the specific frequencies of DTMF.
There is little you can do to fix this except for firmware upgrades
(and I remember there were some that addressed this specific issue,
at least on Cisco ATAs).<br>
<blockquote cite="mid:02f601d0b836$3a0dc4b0$ae294e10$@gmlnt.com"
type="cite">
<div class="WordSection1">
<p class="MsoNormal"><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Jamie <o:p></o:p></p>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
<br>
</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
Technical Support
<a class="moz-txt-link-freetext" href="http://www.cellroute.net">http://www.cellroute.net</a></pre>
</body>
</html>