<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=utf-8">
<META content="MSHTML 6.00.2900.3199" name=GENERATOR>
<STYLE>@font-face {
        font-family: 宋体;
}
@font-face {
        font-family: Verdana;
}
@font-face {
        font-family: @宋体;
}
@page Section1 {size: 595.3pt 841.9pt; margin: 72.0pt 90.0pt 72.0pt 90.0pt; layout-grid: 15.6pt; }
P.MsoNormal {
        TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: justify
}
LI.MsoNormal {
        TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: justify
}
DIV.MsoNormal {
        TEXT-JUSTIFY: inter-ideograph; FONT-SIZE: 10.5pt; MARGIN: 0cm 0cm 0pt; FONT-FAMILY: "Times New Roman"; TEXT-ALIGN: justify
}
A:link {
        COLOR: blue; TEXT-DECORATION: underline
}
SPAN.MsoHyperlink {
        COLOR: blue; TEXT-DECORATION: underline
}
A:visited {
        COLOR: purple; TEXT-DECORATION: underline
}
SPAN.MsoHyperlinkFollowed {
        COLOR: purple; TEXT-DECORATION: underline
}
SPAN.EmailStyle17 {
        FONT-WEIGHT: normal; COLOR: windowtext; FONT-STYLE: normal; FONT-FAMILY: Verdana; TEXT-DECORATION: none; mso-style-type: personal-compose
}
DIV.Section1 {
        page: Section1
}
BLOCKQUOTE {
        MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px; MARGIN-LEFT: 2em
}
OL {
        MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
UL {
        MARGIN-TOP: 0px; MARGIN-BOTTOM: 0px
}
</STYLE>
</HEAD>
<BODY>
<DIV><FONT face=Verdana color=#0000ff size=2>I think you haven't capture 
the&nbsp;packet from the beginning of the call.</FONT></DIV>
<DIV><FONT face=Verdana color=#0000ff size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Verdana color=#0000ff size=2>You must capture the SIP 
packets.&nbsp;And the wireshark will recognise the packets as RTP.</FONT></DIV>
<DIV><FONT face=Verdana color=#0000ff size=2></FONT>&nbsp;</DIV>
<DIV align=left>
<DIV align=left><FONT face=Verdana size=2>
<HR style="WIDTH: 122px; HEIGHT: 2px" SIZE=2>
</FONT></DIV>
<DIV><FONT color=#c0c0c0><FONT face=Verdana size=2><SPAN>木木</SPAN></FONT></DIV>
<DIV><FONT face=Verdana size=2>2007-11-16</FONT></FONT></DIV></DIV>
<DIV><FONT face=Verdana size=2>
<HR>
</FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2><STRONG>发件人:</STRONG> Benjamin 
Jacob</FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2><STRONG>发送时间:</STRONG> 
2007-11-16&nbsp;12:55:51</FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2><STRONG>收件人:</STRONG> Asterisk Users 
Mailing List - Non-Commercial Discussion</FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2><STRONG>抄送:</STRONG> </FONT></FONT></DIV>
<DIV><FONT face=Verdana><FONT size=2><STRONG>主题:</STRONG> Re: [asterisk-users] 
DTMF Problem</FONT></FONT></DIV>
<DIV><FONT face=Verdana size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Verdana size=2>
<DIV>for&nbsp;UDP</DIV>
<DIV>tcpdump&nbsp;-nnXs&nbsp;0&nbsp;udp&nbsp;-i&nbsp;eth0&nbsp;-w&nbsp;name.cap</DIV>
<DIV>&nbsp;</DIV>
<DIV>Btw,&nbsp;a&nbsp;pcap&nbsp;file&nbsp;(created&nbsp;on&nbsp;a&nbsp;linux&nbsp;server&nbsp;using&nbsp;tcpdump)&nbsp;capturing&nbsp;the&nbsp;</DIV>
<DIV>RTP(udp)&nbsp;traffic&nbsp;opened&nbsp;up&nbsp;in&nbsp;wireshark,&nbsp;wireshark&nbsp;doesn't&nbsp;really&nbsp;</DIV>
<DIV>format(or&nbsp;recognize)&nbsp;the&nbsp;packets&nbsp;as&nbsp;RTP,&nbsp;unlike&nbsp;the&nbsp;capture&nbsp;done&nbsp;live&nbsp;</DIV>
<DIV>from&nbsp;a&nbsp;wireshark&nbsp;configured&nbsp;to&nbsp;capture&nbsp;RTP&nbsp;traffic.</DIV>
<DIV>In&nbsp;the&nbsp;former,&nbsp;wireshark&nbsp;shows&nbsp;up&nbsp;everything&nbsp;as&nbsp;UDP&nbsp;and&nbsp;I&nbsp;have&nbsp;to&nbsp;do&nbsp;a&nbsp;</DIV>
<DIV>lot&nbsp;of&nbsp;manual&nbsp;parsing&nbsp;to&nbsp;find&nbsp;out&nbsp;the&nbsp;type&nbsp;etc&nbsp;in&nbsp;the&nbsp;packets&nbsp;captured.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Am&nbsp;I&nbsp;missing&nbsp;some&nbsp;config&nbsp;on&nbsp;wireshark&nbsp;here?</DIV>
<DIV>&nbsp;</DIV>
<DIV>TiA</DIV>
<DIV>-&nbsp;Ben.</DIV>
<DIV>&nbsp;</DIV>
<DIV>ľľ&nbsp;wrote:</DIV>
<DIV>&nbsp;</DIV>
<DIV>&gt;&nbsp;You&nbsp;can&nbsp;use&nbsp;the&nbsp;tcpdump&nbsp;comand&nbsp;in&nbsp;linux.</DIV>
<DIV>&gt;&nbsp;Like:&nbsp;tcpdump&nbsp;-i&nbsp;eth0&nbsp;-s&nbsp;0&nbsp;-w&nbsp;name.cap</DIV>
<DIV>&gt;&nbsp;And&nbsp;you&nbsp;can&nbsp;open&nbsp;the&nbsp;cap&nbsp;file&nbsp;useing&nbsp;wireshark&nbsp;that&nbsp;is&nbsp;a&nbsp;good</DIV>
<DIV>&gt;&nbsp;------------------------------------------------------------------------</DIV>
<DIV>&gt;&nbsp;木木</DIV>
<DIV>&gt;&nbsp;2007-11-16</DIV>
<DIV>&gt;&nbsp;------------------------------------------------------------------------</DIV>
<DIV>&gt;&nbsp;*发件人:*&nbsp;Doug</DIV>
<DIV>&gt;&nbsp;*发送时间:*&nbsp;2007-11-16&nbsp;00:53:15</DIV>
<DIV>&gt;&nbsp;*收件人:*&nbsp;Asterisk&nbsp;Users&nbsp;Mailing&nbsp;List&nbsp;-&nbsp;Non-Commercial&nbsp;Discussion;&nbsp;</DIV>
<DIV>&gt;&nbsp;Asterisk&nbsp;Users&nbsp;Mailing&nbsp;List&nbsp;-&nbsp;No</DIV>
<DIV>&gt;&nbsp;*抄送:*</DIV>
<DIV>&gt;&nbsp;*主题:*&nbsp;Re:&nbsp;[asterisk-users]&nbsp;DTMF&nbsp;Problem</DIV>
<DIV>&gt;&nbsp;At&nbsp;06:42&nbsp;11/15/2007,&nbsp;=?gb2312?B?xL7Evg==?=&nbsp;wrote:</DIV>
<DIV>&gt;&nbsp; &gt;Hi,</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; 
&gt;Could&nbsp;you&nbsp;capture&nbsp;the&nbsp;the&nbsp;UDP&nbsp;package</DIV>
<DIV>&gt;&nbsp;How&nbsp;is&nbsp;this&nbsp;done?</DIV>
<DIV>&gt;&nbsp; 
&gt;in&nbsp;all&nbsp;of&nbsp;your&nbsp;server,&nbsp;Asterisk&nbsp;A,&nbsp;Asterisk&nbsp;B,&nbsp;ser,&nbsp;Asterisk&nbsp;C.</DIV>
<DIV>&gt;&nbsp; 
&gt;And&nbsp;you&nbsp;can&nbsp;find&nbsp;that&nbsp;server&nbsp;who&nbsp;lost&nbsp;the&nbsp;DTMF&nbsp;(RTP&nbsp;EVENT).</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; &gt;----------</DIV>
<DIV>&gt;&nbsp; &gt;Amy</DIV>
<DIV>&gt;&nbsp; &gt;2007-11-15</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; &gt;----------</DIV>
<DIV>&gt;&nbsp; &gt;发件人:&nbsp;Arun&nbsp;Kumar</DIV>
<DIV>&gt;&nbsp; &gt;发送时间:&nbsp;2007-11-15&nbsp;20:30:45</DIV>
<DIV>&gt;&nbsp; 
&gt;收件人:&nbsp;Asterisk&nbsp;Users&nbsp;Mailing&nbsp;List&nbsp;-&nbsp;Non-Commercial&nbsp;Discussion;&nbsp;SER&nbsp;</DIV>
<DIV>&gt;&nbsp;Users</DIV>
<DIV>&gt;&nbsp; &gt;抄送:</DIV>
<DIV>&gt;&nbsp; &gt;主题:&nbsp;[asterisk-users]&nbsp;DTMF&nbsp;Problem</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; &gt;Hi</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; &gt;Here&nbsp;is&nbsp;my&nbsp;setup:</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; &gt;USER&nbsp;------&nbsp; &gt;&nbsp;PSTN&nbsp;-----&nbsp; 
&gt;&nbsp;Asterisk&nbsp;A&nbsp;----&nbsp; 
&gt;&nbsp;IAX2&nbsp;Trunk&nbsp;----&nbsp; &gt;&nbsp;Asterisk</DIV>
<DIV>&gt;&nbsp; &gt;B&nbsp;---------&nbsp; &gt;&nbsp;SER&nbsp;--------&nbsp; 
&gt;&nbsp;Asterisk&nbsp;C</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; 
&gt;I'm&nbsp;not&nbsp;able&nbsp;to&nbsp;receive&nbsp;DTMF&nbsp;passed&nbsp;by&nbsp;USER&nbsp;on&nbsp;Asterisk&nbsp;C.</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; 
&gt;All&nbsp;my&nbsp;asterisk&nbsp;boxs&nbsp;are&nbsp;configured&nbsp;with&nbsp;same&nbsp;DTMF&nbsp;type&nbsp;(auto)&nbsp;but&nbsp;no&nbsp;</DIV>
<DIV>&gt;&nbsp;luck.</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; &gt;Please&nbsp;help&nbsp;on&nbsp;this&nbsp;issue.</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; &gt;Thanks,</DIV>
<DIV>&gt;&nbsp; &gt;</DIV>
<DIV>&gt;&nbsp; &gt;Arun</DIV>
<DIV>&gt;&nbsp;_______________________________________________</DIV>
<DIV>&gt;&nbsp;--Bandwidth&nbsp;and&nbsp;Colocation&nbsp;Provided&nbsp;by&nbsp;<A 
href="http://www.api-digital.com--">http://www.api-digital.com--</A></DIV>
<DIV>&gt;&nbsp;asterisk-users&nbsp;mailing&nbsp;list</DIV>
<DIV>&gt;&nbsp;To&nbsp;UNSUBSCRIBE&nbsp;or&nbsp;update&nbsp;options&nbsp;visit:</DIV>
<DIV>&gt;&nbsp;<A 
href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</A></DIV>
<DIV>&gt;</DIV>
<DIV>&gt;------------------------------------------------------------------------</DIV>
<DIV>&gt;</DIV>
<DIV>&gt;_______________________________________________</DIV>
<DIV>&gt;--Bandwidth&nbsp;and&nbsp;Colocation&nbsp;Provided&nbsp;by&nbsp;<A 
href="http://www.api-digital.com--">http://www.api-digital.com--</A></DIV>
<DIV>&gt;</DIV>
<DIV>&gt;asterisk-users&nbsp;mailing&nbsp;list</DIV>
<DIV>&gt;To&nbsp;UNSUBSCRIBE&nbsp;or&nbsp;update&nbsp;options&nbsp;visit:</DIV>
<DIV>&gt;&nbsp;&nbsp;&nbsp;<A 
href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</A></DIV>
<DIV>&gt;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>EMAIL&nbsp;DISCLAIMER&nbsp;:&nbsp;This&nbsp;email&nbsp;and&nbsp;any&nbsp;files&nbsp;transmitted&nbsp;with&nbsp;it&nbsp;are&nbsp;confidential&nbsp;and&nbsp;intended&nbsp;solely&nbsp;for&nbsp;the&nbsp;use&nbsp;of&nbsp;the&nbsp;individual&nbsp;or&nbsp;entity&nbsp;to&nbsp;whom&nbsp;they&nbsp;are&nbsp;addressed.&nbsp;Any&nbsp;unauthorised&nbsp;distribution&nbsp;or&nbsp;copying&nbsp;is&nbsp;strictly&nbsp;prohibited.&nbsp;If&nbsp;you&nbsp;receive&nbsp;this&nbsp;transmission&nbsp;in&nbsp;error,&nbsp;please&nbsp;notify&nbsp;the&nbsp;sender&nbsp;by&nbsp;reply&nbsp;email&nbsp;and&nbsp;then&nbsp;destroy&nbsp;the&nbsp;message.&nbsp;Opinions,&nbsp;conclusions&nbsp;and&nbsp;other&nbsp;information&nbsp;in&nbsp;this&nbsp;message&nbsp;that&nbsp;do&nbsp;not&nbsp;relate&nbsp;to&nbsp;official&nbsp;business&nbsp;of&nbsp;Mascon&nbsp;shall&nbsp;be&nbsp;understood&nbsp;to&nbsp;be&nbsp;neither&nbsp;given&nbsp;nor&nbsp;endorsed&nbsp;by&nbsp;Mascon.&nbsp;Any&nbsp;information&nbsp;contained&nbsp;in&nbsp;this&nbsp;email,&nbsp;when&nbsp;addressed&nbsp;to&nbsp;Mascon&nbsp;clients&nbsp;is&nbsp;subject&nbsp;to&nbsp;the&nbsp;terms&nbsp;and&nbsp;conditions&nbsp;in&nbsp;governing&nbsp;client&nbsp;contract.</DIV>
<DIV>&nbsp;</DIV>
<DIV>Whilst&nbsp;Mascon&nbsp;takes&nbsp;steps&nbsp;to&nbsp;prevent&nbsp;the&nbsp;transmission&nbsp;of&nbsp;viruses&nbsp;via&nbsp;e-mail,&nbsp;we&nbsp;can&nbsp;not&nbsp;guarantee&nbsp;that&nbsp;any&nbsp;email&nbsp;or&nbsp;attachment&nbsp;is&nbsp;free&nbsp;from&nbsp;computer&nbsp;viruses&nbsp;and&nbsp;you&nbsp;are&nbsp;strongly&nbsp;advised&nbsp;to&nbsp;undertake&nbsp;your&nbsp;own&nbsp;anti-virus&nbsp;precautions.&nbsp;Mascon&nbsp;grants&nbsp;no&nbsp;warranties&nbsp;regarding&nbsp;performance,&nbsp;use&nbsp;or&nbsp;quality&nbsp;of&nbsp;any&nbsp;e-mail&nbsp;or&nbsp;attachment&nbsp;and&nbsp;undertakes&nbsp;no&nbsp;liability&nbsp;for&nbsp;loss&nbsp;or&nbsp;damage,&nbsp;howsoever&nbsp;caused.&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>&nbsp;</DIV>
<DIV>_______________________________________________</DIV>
<DIV>--Bandwidth&nbsp;and&nbsp;Colocation&nbsp;Provided&nbsp;by&nbsp;<A 
href="http://www.api-digital.com--">http://www.api-digital.com--</A></DIV>
<DIV>&nbsp;</DIV>
<DIV>asterisk-users&nbsp;mailing&nbsp;list</DIV>
<DIV>To&nbsp;UNSUBSCRIBE&nbsp;or&nbsp;update&nbsp;options&nbsp;visit:</DIV>
<DIV>&nbsp;&nbsp;&nbsp;<A 
href="http://lists.digium.com/mailman/listinfo/asterisk-users">http://lists.digium.com/mailman/listinfo/asterisk-users</A></DIV></FONT></DIV></BODY></HTML>