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Did you try putting inband parameter in dtmfmode and dtmf of your sip.conf?<BR>
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Regards,<BR>
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-- <BR>
Ing CIP. Alejandro Celi Mariátegui <BR>
<<A HREF="mailto:alex@linux.org.pe">alex@linux.org.pe</A>><BR>
<A HREF="http://cipher.pe/web/asterisk.html">http://cipher.pe/web/asterisk.html</A>
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El mié, 16-05-2012 a las 16:07 +0100, Shahid H escribió:<BR>
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<FONT COLOR="#000000">I am having a problem with SendDTMF() - 50% of time it did not succeed.</FONT>
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<FONT COLOR="#000000">I suspect it is not sending clear DTMF tones to the IVR.</FONT>
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<FONT COLOR="#000000">For example:</FONT>
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<FONT COLOR="#000000">SendDTMF(wwwww3wwwww2wwwwww1wwwww4)</FONT>
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<FONT COLOR="#000000">Sometime digit 3 and 2 work, and failed to do digit 1.</FONT>
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<FONT COLOR="#000000">Sometime digit 3 work and failed to do number 2.</FONT>
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<FONT COLOR="#000000">Sometime all went through fine. </FONT>
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<FONT COLOR="#000000">dtmfmode=rfc2833 are set in the sip.conf file</FONT>
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<FONT COLOR="#000000">How do I debug to see what went wrong and how to fix?</FONT>
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<FONT COLOR="#000000">Asterisk 1.8.12.0</FONT>
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<FONT COLOR="#000000">Installed on VPS (XEN, CentOS 5.x, 768 MB Ram, 1000 GB B/W - Located in UK)</FONT>
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<FONT COLOR="#000000">VOIP Provider in UK.</FONT>
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<FONT COLOR="#000000">Thanks</FONT>
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