<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:x="urn:schemas-microsoft-com:office:excel" xmlns:p="urn:schemas-microsoft-com:office:powerpoint" xmlns:a="urn:schemas-microsoft-com:office:access" xmlns:dt="uuid:C2F41010-65B3-11d1-A29F-00AA00C14882" xmlns:s="uuid:BDC6E3F0-6DA3-11d1-A2A3-00AA00C14882" xmlns:rs="urn:schemas-microsoft-com:rowset" xmlns:z="#RowsetSchema" xmlns:b="urn:schemas-microsoft-com:office:publisher" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet" xmlns:c="urn:schemas-microsoft-com:office:component:spreadsheet" xmlns:odc="urn:schemas-microsoft-com:office:odc" xmlns:oa="urn:schemas-microsoft-com:office:activation" xmlns:html="http://www.w3.org/TR/REC-html40" xmlns:q="http://schemas.xmlsoap.org/soap/envelope/" xmlns:rtc="http://microsoft.com/officenet/conferencing" xmlns:D="DAV:" xmlns:Repl="http://schemas.microsoft.com/repl/" xmlns:mt="http://schemas.microsoft.com/sharepoint/soap/meetings/" xmlns:x2="http://schemas.microsoft.com/office/excel/2003/xml" xmlns:ppda="http://www.passport.com/NameSpace.xsd" xmlns:ois="http://schemas.microsoft.com/sharepoint/soap/ois/" xmlns:dir="http://schemas.microsoft.com/sharepoint/soap/directory/" xmlns:ds="http://www.w3.org/2000/09/xmldsig#" xmlns:dsp="http://schemas.microsoft.com/sharepoint/dsp" xmlns:udc="http://schemas.microsoft.com/data/udc" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:sub="http://schemas.microsoft.com/sharepoint/soap/2002/1/alerts/" xmlns:ec="http://www.w3.org/2001/04/xmlenc#" xmlns:sp="http://schemas.microsoft.com/sharepoint/" xmlns:sps="http://schemas.microsoft.com/sharepoint/soap/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:udcs="http://schemas.microsoft.com/data/udc/soap" xmlns:udcxf="http://schemas.microsoft.com/data/udc/xmlfile" xmlns:udcp2p="http://schemas.microsoft.com/data/udc/parttopart" xmlns:wf="http://schemas.microsoft.com/sharepoint/soap/workflow/" xmlns:dsss="http://schemas.microsoft.com/office/2006/digsig-setup" xmlns:dssi="http://schemas.microsoft.com/office/2006/digsig" xmlns:mdssi="http://schemas.openxmlformats.org/package/2006/digital-signature" xmlns:mver="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns:mrels="http://schemas.openxmlformats.org/package/2006/relationships" xmlns:spwp="http://microsoft.com/sharepoint/webpartpages" xmlns:ex12t="http://schemas.microsoft.com/exchange/services/2006/types" xmlns:ex12m="http://schemas.microsoft.com/exchange/services/2006/messages" xmlns:pptsl="http://schemas.microsoft.com/sharepoint/soap/SlideLibrary/" xmlns:spsl="http://microsoft.com/webservices/SharePointPortalServer/PublishedLinksService" xmlns:Z="urn:schemas-microsoft-com:" xmlns:st="" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv=Content-Type content="text/html; charset=us-ascii">
<meta name=Generator content="Microsoft Word 12 (filtered medium)">
<base href="x-msg://2/">
<!--[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]-->
<style>
<!--
/* Font Definitions */
@font-face
{font-family:Helvetica;
panose-1:2 11 6 4 2 2 2 2 2 4;}
@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;}
@font-face
{font-family:Tahoma;
panose-1:2 11 6 4 3 5 4 4 2 4;}
@font-face
{font-family:Verdana;
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","serif";}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p
{mso-style-priority:99;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
p.MsoListParagraph, li.MsoListParagraph, div.MsoListParagraph
{mso-style-priority:34;
margin-top:0in;
margin-right:0in;
margin-bottom:0in;
margin-left:.5in;
margin-bottom:.0001pt;
font-size:12.0pt;
font-family:"Times New Roman","serif";}
span.apple-style-span
{mso-style-name:apple-style-span;}
span.apple-converted-space
{mso-style-name:apple-converted-space;}
span.EmailStyle21
{mso-style-type:personal-reply;
font-family:"Calibri","sans-serif";
color:#1F497D;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
/* List Definitions */
@list l0
{mso-list-id:1072629519;
mso-list-type:hybrid;
mso-list-template-ids:-285865684 67698703 67698713 67698715 67698703 67698713 67698715 67698703 67698713 67698715;}
@list l0:level1
{mso-level-tab-stop:none;
mso-level-number-position:left;
text-indent:-.25in;}
ol
{margin-bottom:0in;}
ul
{margin-bottom:0in;}
-->
</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 style='word-wrap: break-word;
-webkit-nbsp-mode: space;-webkit-line-break: after-white-space'>
<div class=WordSection1>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Having implemented and designed many systems with SIP to CUCM,
there are mainly two reasons that one requires MTP for SIP:<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>1.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>DTMF. However, today, most items with CUCM support
RFC2833 – including phones, Unity, even MGCP gateways have commands to
support it. One also needs to validate that which is configured on CUCM
maps to what is configured on the gateway – if using Cisco VGs.<o:p></o:p></span></p>
<p class=MsoListParagraph style='text-indent:-.25in;mso-list:l0 level1 lfo1'><![if !supportLists]><span
style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><span
style='mso-list:Ignore'>2.<span style='font:7.0pt "Times New Roman"'>
</span></span></span><![endif]><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>EO support. CUCM (this changes in 8.5) requires MTP for
Early offers. Many providers require EO for outbound calls. Up to
this point, the only way to send EO from CUCM has been MTP required. This
also has locked in your codec selection. Inbound CUCM supports both
EO and DO, without MTP required being checked – however you may need an
MTP for varying ptimes, codec translation or DTMF conversion. <o:p></o:p></span></p>
<p class=MsoListParagraph><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>One way to get around requiring MTP on CUCM is by using
CUBE. If you are in flow through mode, you can make use of the DO to EO
conversion. Simply, one is just tying down the media stream to an IP/port
that can be sent. Think of it as H323 fast start.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Now if one requires MTP or even has it in your MRGL –
validate the MTP type being used supports what you are trying to achieve.
Not all MTPs are created equal nor are they recommend in every scenario. <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I should mention there is one more reason that we have seen –
transfers and conferences sometimes require MTP with SIP based calls.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Lastly, any known bugs need to be dealt with – whether in
IOS or CUCM.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Cheers, <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Bob <o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><a href="www.dimensiondata.com">www.dimensiondata.com</a><o:p></o:p></span></p>
</div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] <b>On Behalf Of </b>Mark Holloway<br>
<b>Sent:</b> Monday, November 15, 2010 10:27 AM<br>
<b>To:</b> Jason Aarons (US)<br>
<b>Cc:</b> cisco-voip@puck.nether.net<br>
<b>Subject:</b> Re: [cisco-voip] SIP trunk one way audio<o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>If I remember right, CUCM 7 did not include a payload type
in the SDP portion of the SIP Invite when placing a call to the PSTN through
the SIP Trunk. I am going to investigate it and if I can gather some good debugs
I may even blog about it just so it's documented somewhere.<o:p></o:p></p>
<div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
<div>
<div>
<div>
<p class=MsoNormal>On Nov 15, 2010, at 8:47 AM, Jason Aarons (US) wrote:<o:p></o:p></p>
</div>
<p class=MsoNormal><br>
<br>
<o:p></o:p></p>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Recent deployment with CUCM 8.0(3a) and IOS 15.1(2)T in almost
identical setup (Device > Trunk > 3900e/SIP but with PRIs) I found calls
were not setting up without MTP Required checked. I don’t think it
should be required, nor did I want it required, I have not had time to look
into ccmtraces on why I needed the checkmark.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Maybe I’m missing something, but I agree MTP Required is
usually bad and should be avoided where possible, or explained why it was
checked in technical detail.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;
border-width:initial;border-color:initial'>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><a
href="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a><span
class=apple-converted-space> </span>[mailto:cisco-voip-bounces@puck.nether.net]<span
class=apple-converted-space> </span><b>On Behalf Of<span
class=apple-converted-space> </span></b>Bill Riley<br>
<b>Sent:</b><span class=apple-converted-space> </span>Monday, November 15,
2010 9:08 AM<br>
<b>To:</b><span class=apple-converted-space> </span>'Mark Holloway'<br>
<b>Cc:</b><span class=apple-converted-space> </span><a
href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<b>Subject:</b><span class=apple-converted-space> </span>Re: [cisco-voip]
SIP trunk one way audio</span><o:p></o:p></p>
</div>
</div>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I don’t think that’s correct. It needs access to an
MTP but you shouldn’t need to use the MTP required checkbox on the trunk.</span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
<div>
<div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in;
border-width:initial;border-color:initial'>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Mark Holloway
[mailto:mh@markholloway.com]<span class=apple-converted-space> </span><br>
<b>Sent:</b><span class=apple-converted-space> </span>Friday, November 12,
2010 12:24 PM<br>
<b>To:</b><span class=apple-converted-space> </span>Bill Riley<br>
<b>Cc:</b><span class=apple-converted-space> </span>'Ryan Ratliff';<span
class=apple-converted-space> </span><a
href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<b>Subject:</b><span class=apple-converted-space> </span>Re: [cisco-voip]
SIP trunk one way audio</span><o:p></o:p></p>
</div>
</div>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
<div>
<p class=MsoNormal>CUCM needs it assigned to the trunk for DTMF to work
properly for calls egressing the SIP Trunk.<o:p></o:p></p>
</div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=MsoNormal>On Nov 12, 2010, at 10:50 AM, Bill Riley wrote:<o:p></o:p></p>
</div>
</div>
<p class=MsoNormal style='margin-bottom:12.0pt'> <o:p></o:p></p>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I don’t think that is correct. It should only need to have
one available in the MRGL, not one allocated every time a call comes in.</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>voice service voip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ip address trusted list</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> ipv4 x.x.x.x</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> ipv4 x.x.x.x</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> ipv4 x.x.x.x</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>allow-connections h323 to h323</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>allow-connections h323 to sip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>allow-connections sip to h323</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>allow-connections sip to sip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>no supplementary-service sip moved-temporarily</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>no supplementary-service sip refer</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>fax protocol t38 nse force version 0 ls-redundancy 0 hs-redundancy
0 fallback none</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>h323</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>modem passthrough nse codec g711ulaw</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>sip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> bind control source-interface Serial0/0/0:1</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> bind media source-interface Serial0/0/0:1</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> early-offer forced</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> midcall-signaling passthru</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>!</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>voice class codec 100</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>codec preference 1 g711ulaw</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>codec preference 2 g729r8</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>!</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>! </span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dial-peer voice 201 voip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>preference 1</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>destination-pattern 91[2-9]..[2-9]......</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type cisco-codec-fax-ind 98</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type comfort-noise 13</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session protocol sipv2</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session target ipv4: x.x.x.x</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dtmf-relay rtp-nte</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>codec g711ulaw</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>fax rate 14400</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ip qos dscp cs3 signaling</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>!</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dial-peer voice 202 voip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>preference 1</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>destination-pattern 9[2-9]......T</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type cisco-codec-fax-ind 98</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type comfort-noise 13</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session protocol sipv2</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session target ipv4: x.x.x.x</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dtmf-relay rtp-nte</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>codec g711ulaw</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>fax rate 14400</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ip qos dscp ef signaling</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>!</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dial-peer voice 203 voip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>preference 1</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>destination-pattern ^9556[2-9]......</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type cisco-codec-fax-ind 98</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type comfort-noise 13</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session protocol sipv2</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session target ipv4: x.x.x.x</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dtmf-relay rtp-nte</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>codec g711ulaw</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>fax rate 14400</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ip qos dscp ef signaling</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>!</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dial-peer voice 204 voip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>preference 1</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>destination-pattern 9555[2-9]......</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type cisco-codec-fax-ind 98</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type comfort-noise 13</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session protocol sipv2</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session target ipv4: x.x.x.x</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dtmf-relay rtp-nte</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>fax rate 14400</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ip qos dscp ef signaling</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>!</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dial-peer voice 411 voip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>preference 1</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>destination-pattern 5555555..</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type cisco-codec-fax-ind 98</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type comfort-noise 13</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session protocol sipv2</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session target ipv4: x.x.x.x</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dtmf-relay rtp-nte</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>codec g711ulaw</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>fax rate 14400</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ip qos dscp cs3 signaling</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>! </span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dial-peer voice 412 voip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>preference 2</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>destination-pattern 5555555..</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type cisco-codec-fax-ind 98</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type comfort-noise 13</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session protocol sipv2</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session target ipv4: x.x.x.x</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dtmf-relay rtp-nte</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>codec g711ulaw</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>fax rate 14400</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ip qos dscp cs3 signaling</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>!</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dial-peer voice 413 voip</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>preference 3</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>destination-pattern 5555555..</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type cisco-codec-fax-ind 98</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>rtp payload-type comfort-noise 13</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session protocol sipv2</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>session target ipv4: x.x.x.x</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>dtmf-relay rtp-nte</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>codec g711ulaw</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>fax rate 14400</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>ip qos dscp cs3 signaling</span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
<div>
<div style='border:none;border-top:solid windowtext 3.0pt;padding:3.0pt 0in 0in 0in;
border-width:initial;border-color:initial;border-width:initial;border-color:
initial'>
<div>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Mark Holloway
[mailto:mh@markholloway.com]<span class=apple-converted-space> </span><br>
<b>Sent:</b><span class=apple-converted-space> </span>Friday, November 12,
2010 11:32 AM<br>
<b>To:</b><span class=apple-converted-space> </span>Bill Riley<br>
<b>Cc:</b><span class=apple-converted-space> </span>'Ryan Ratliff';<span
class=apple-converted-space> </span><a
href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<b>Subject:</b><span class=apple-converted-space> </span>Re: [cisco-voip]
SIP trunk one way audio</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
<div>
<div>
<p class=MsoNormal>You should have it on the trunk.<o:p></o:p></p>
</div>
</div>
<div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=MsoNormal>On Nov 12, 2010, at 10:29 AM, Bill Riley wrote:<o:p></o:p></p>
</div>
</div>
</div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
<br>
<br>
<o:p></o:p></p>
</div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Your right, but I don’t need to have the check box to
require one on the trunk. It should allocate one from the MRGL on an as needed
basis.</span><o:p></o:p></p>
</div>
</div>
</div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
</div>
<div>
<div style='border:none;border-top:solid windowtext 3.0pt;padding:3.0pt 0in 0in 0in;
border-width:initial;border-color:initial;border-width:initial;border-color:
initial;border-width:initial;border-color:initial'>
<div>
<div>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Mark Holloway
[mailto:mh@markholloway.com]<span class=apple-converted-space> </span><br>
<b>Sent:</b><span class=apple-converted-space> </span>Friday, November 12,
2010 11:28 AM<br>
<b>To:</b><span class=apple-converted-space> </span>Bill Riley<br>
<b>Cc:</b><span class=apple-converted-space> </span>'Ryan Ratliff';<span
class=apple-converted-space> </span><a
href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<b>Subject:</b><span class=apple-converted-space> </span>Re: [cisco-voip]
SIP trunk one way audio</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
</div>
<div>
<div>
<div>
<p class=MsoNormal>You should be using an MTP for your SIP trunk to support
DTMF. It does not need to be a hardware MTP resource. <o:p></o:p></p>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal>On Nov 12, 2010, at 10:05 AM, Bill Riley wrote:<o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
<br>
<br>
<br>
<o:p></o:p></p>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>When I change it to MTP required on the sip trunk everything
works as expected. The point is that I shouldn’t need to have this
configuration.</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<div style='border:none;border-top:solid windowtext 3.0pt;padding:3.0pt 0in 0in 0in;
border-width:initial;border-color:initial;border-width:initial;border-color:
initial;border-width:initial;border-color:initial;border-width:initial;
border-color:initial'>
<div>
<div>
<div>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Ryan Ratliff
[mailto:rratliff@cisco.com]<span class=apple-converted-space> </span><br>
<b>Sent:</b><span class=apple-converted-space> </span>Friday, November 12,
2010 9:00 AM<br>
<b>To:</b><span class=apple-converted-space> </span>Bill Riley<br>
<b>Cc:</b><span class=apple-converted-space> </span>'Cheng, Karen';<span
class=apple-converted-space> </span><a
href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<b>Subject:</b><span class=apple-converted-space> </span>Re: [cisco-voip]
SIP trunk one way audio</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=MsoNormal>I see lots of discussion around config and call flow but
have you actually done any troubleshooting? One way audio most of the
time comes down to the simple fact that one party is not receiving RTP from the
other. For these one-way audio calls you need to determine what IP
addresses are involved. Next verify this in the signaling via the SDPs in
the SIP messages. You can then use show commands on the router to
confirm where it thinks it should be sending and receiving RTP to/from and if
in fact packet counters are incrementing.<o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal>If no MTP is being used for the call, try forcing it to use
one and see if that fixes the issue.<o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal>If you are using media flow-through (default) does changing
it to flow-around fix the issue? <o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:13.5pt;font-family:"Helvetica","sans-serif";
color:black'>-Ryan</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal>On Nov 12, 2010, at 8:09 AM, Bill Riley wrote:<o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<p class=MsoNormal style='margin-bottom:12.0pt'><br>
<br>
<br>
<br>
<br>
<o:p></o:p></p>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I shouldn’t need an MTP for this connection. All SIP
traffic is sourced from one interface. I do have SCCP traffic sourced
from a different interface but it is only used for a conference bridge, not MTP.</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div style='border:none;border-top:solid windowtext 3.0pt;padding:3.0pt 0in 0in 0in;
border-width:initial;border-color:initial;border-width:initial;border-color:
initial;border-width:initial;border-color:initial;border-width:initial;
border-color:initial;border-width:initial;border-color:initial'>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Cheng, Karen
[mailto:Karen.Cheng@racq.com.au]<span class=apple-converted-space> </span><br>
<b>Sent:</b><span class=apple-converted-space> </span>Thursday, November
11, 2010 9:14 PM<br>
<b>To:</b><span class=apple-converted-space> </span>'Bill Riley'<br>
<b>Subject:</b><span class=apple-converted-space> </span>RE: [cisco-voip]
SIP trunk one way audio</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Not sure if you have checked already but is your SIP trunk using
one interface and your MTP/SCCP interface a different interface?</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>I had one-way audio/no audio problems ages back due to this
because our integrator had configured the SIP trunk to point to int
gi0/0’s IP and then configured the SCCP interface to loopback0.</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>Regards</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><b><i><span lang=EN-AU style='font-size:10.0pt;font-family:
"Arial","sans-serif";color:#003478'>Karen Cheng</span></i></b><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><i><span lang=EN-AU style='font-size:10.0pt;font-family:
"Arial","sans-serif";color:#003478'>Voice Network Engineer</span></i><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU style='color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU style='color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU style='color:#1F497D'> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div style='border:none;border-top:solid windowtext 3.0pt;padding:3.0pt 0in 0in 0in;
border-width:initial;border-color:initial;border-width:initial;border-color:
initial;border-width:initial;border-color:initial;border-width:initial;
border-color:initial;border-width:initial;border-color:initial'>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
class=apple-converted-space><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> </span></span><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'><a
href="mailto:cisco-voip-bounces@puck.nether.net">cisco-voip-bounces@puck.nether.net</a><span
class=apple-converted-space> </span>[mailto:cisco-voip-bounces@puck.nether.net]<span
class=apple-converted-space> </span><b>On Behalf Of<span
class=apple-converted-space> </span></b>Bill Riley<br>
<b>Sent:</b><span class=apple-converted-space> </span>Friday, 12 November
2010 2:15 AM<br>
<b>To:</b><span class=apple-converted-space> </span><a
href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<b>Subject:</b><span class=apple-converted-space> </span>[cisco-voip] SIP
trunk one way audio</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU style='font-size:11.0pt;font-family:"Calibri","sans-serif"'> </span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif"'>I
have a new SIP trunk terminating in a 2921 CUBE bundle. When I call in from the
Trunk directly to an IP phone it works correctly. If I call from the trunk to
IP phone and the IP phone transfers the call without waiting for the remote
party to answer I get one way audio. From reading this looks like and MTP issue
but I have an MTP set in the MRGL for the trunk.</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span lang=EN-AU><br>
</span><span lang=EN-AU style='font-size:7.5pt;font-family:"Verdana","sans-serif";
color:green'>75% of inspected vehicle have a defect*. Call 13 1905 and book an
RACQ Vehicle Inspection today. *Based on the RACQ Vehicle Defect Report January
2008<br>
<br>
</span><span lang=EN-AU><br>
</span><span lang=EN-AU style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:gray'>Please Note: If you are not the intended recipient, please delete
this email as its use is prohibited. RACQ does not warrant or represent that
this email is free from viruses or defects. If you do not wish to receive any
further commercial electronic messages from RACQ please e-mail<span
class=apple-converted-space> </span><a
href="mailto:unsubscribe@racq.com.au">unsubscribe@racq.com.au</a><span
class=apple-converted-space> </span>or contact RACQ on 13 19 05.</span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:13.5pt'>_______________________________________________<br>
cisco-voip mailing list<br>
<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<a href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a></span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<p class=MsoNormal><span style='font-size:13.5pt;font-family:"Verdana","sans-serif"'>_______________________________________________<br>
cisco-voip mailing list<br>
<a href="mailto:cisco-voip@puck.nether.net">cisco-voip@puck.nether.net</a><br>
<a href="https://puck.nether.net/mailman/listinfo/cisco-voip">https://puck.nether.net/mailman/listinfo/cisco-voip</a></span><o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
</div>
<div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
</div>
</div>
</div>
<div>
<p class=MsoNormal> <o:p></o:p></p>
</div>
</div>
<div>
<p class=MsoNormal><span style='font-size:13.5pt;font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p>
</div>
<div class=MsoNormal align=center style='text-align:center'><span
style='font-size:13.5pt;font-family:"Verdana","sans-serif"'>
<hr size=1 width="100%" align=center>
</span></div>
<div>
<p class=MsoNormal><span style='font-size:13.5pt;font-family:"Verdana","sans-serif"'><o:p> </o:p></span></p>
</div>
<p><strong><span style='font-size:13.5pt;font-family:"Verdana","sans-serif"'>Disclaimer:
This e-mail communication and any attachments may contain confidential and
privileged information and is for use by the designated addressee(s) named
above only. If you are not the intended addressee, you are hereby notified that
you have received this communication in error and that any use or reproduction
of this email or its contents is strictly prohibited and may be unlawful. If
you have received this communication in error, please notify us immediately by
replying to this message and deleting it from your computer. Thank you.</span></strong><span
style='font-size:13.5pt;font-family:"Verdana","sans-serif"'><o:p></o:p></span></p>
</div>
</div>
<p class=MsoNormal><o:p> </o:p></p>
</div>
</div>
</body>
</html>
<HTML><BODY><P><hr size=1></P>
<P><STRONG>
Disclaimer:
This e-mail communication and any attachments may contain confidential and privileged information and is for use by the designated addressee(s) named above only. If you are not the intended addressee, you are hereby notified that you have received this communication in error and that any use or reproduction of this email or its contents is strictly prohibited and may be unlawful. If you have received this communication in error, please notify us immediately by replying to this message and deleting it from your computer. Thank you.
</STRONG></P></BODY></HTML>