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<TITLE>RE: [Asterisk-Users] Fail to detect DTMF over direct ISDN pri link</TITLE>
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<P><FONT SIZE=2>Thank you Peter for you reply,</FONT>
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<P><FONT SIZE=2>I realize this problem occur because I take the CVS head (maybe a bugs get introduce), because when I rebuild using the checkout of the latest stable version (cvs checkout -r v1-0), I don't have the problem of detection of DTMF over a direct ISDN pri link. Hopefully this problem with be fixed before the next release of asterisk.</FONT></P>
<P><FONT SIZE=2>Sylvain.</FONT>
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<P><FONT SIZE=2>-----Original Message-----</FONT>
<BR><FONT SIZE=2>From: asterisk-users-bounces@lists.digium.com [<A HREF="mailto:asterisk-users-bounces@lists.digium.com">mailto:asterisk-users-bounces@lists.digium.com</A>] On Behalf Of Peter Svensson</FONT></P>
<P><FONT SIZE=2>Sent: Tuesday, February 15, 2005 11:11 AM</FONT>
<BR><FONT SIZE=2>To: Asterisk Users Mailing List - Non-Commercial Discussion</FONT>
<BR><FONT SIZE=2>Subject: Re: [Asterisk-Users] Fail to detect DTMF over direct ISDN pri link</FONT>
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<P><FONT SIZE=2>On Tue, 15 Feb 2005, Sylvain Gagnon wrote:</FONT>
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<P><FONT SIZE=2>> I'm using Asterisk (latest CVS head) to perform outbound call as</FONT>
<BR><FONT SIZE=2>> robot/testing tool for an IVR platform, with a Wildcard T100P configure as</FONT>
<BR><FONT SIZE=2>> ISDN Pri.</FONT>
<BR><FONT SIZE=2>> For develop the exten context script I was using a real PSTN ISDN Megalink</FONT>
<BR><FONT SIZE=2>> (DMS100) to reach the platform and my script was able to correctly detected</FONT>
<BR><FONT SIZE=2>> the DTMF tone send back by the platform to synchronize the script.</FONT>
<BR><FONT SIZE=2>> But for load test, I want to used a direct ISDN link with the platform,</FONT>
<BR><FONT SIZE=2>> without to change anything at the Asterix side, I configure the platform to</FONT>
<BR><FONT SIZE=2>> be the ISDN Network side (DMS100) with a twist cable. The D-Channel can up;</FONT>
<BR><FONT SIZE=2>> I am able to perform call, except Asterisk doesn't detect any DTMF anymore?</FONT>
<BR><FONT SIZE=2>> Why? What is the relation with the ISDN link?</FONT>
<BR><FONT SIZE=2>> I use the "monitor" command to record the call, and I really hear the DTMF</FONT>
<BR><FONT SIZE=2>> tone correctly...</FONT>
<BR><FONT SIZE=2>> I try to put relaxdtmf=yes in the Zapata.conf, but no success....</FONT>
<BR><FONT SIZE=2>> Thanks for any help or suggestion to diagnose this problem.</FONT>
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<P><FONT SIZE=2>I'm not quite sure I understand your setup when the dtmf detection works / </FONT>
<BR><FONT SIZE=2>does not work. Can you explain what is connected to what for the two </FONT>
<BR><FONT SIZE=2>cases?</FONT>
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<P><FONT SIZE=2>One possibility I can think of is that inband digits are not detected on a </FONT>
<BR><FONT SIZE=2>PRI until the call is in the PROCEEDING phase. Until then the digits are </FONT>
<BR><FONT SIZE=2>dent as INFORMATION elements. Perhaps your two pieces of equipment do not </FONT>
<BR><FONT SIZE=2>agreee on the state of the call?</FONT>
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<P><FONT SIZE=2>Peter</FONT>
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