test it out with rfc2833 with sip since it is the most common of them all<br><br><br><div><span class="gmail_quote">On 8/8/06, <b class="gmail_sendername">Moises Silva</b> <<a href="mailto:moises.silva@gmail.com">moises.silva@gmail.com
</a>> wrote:</span><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">Ok, with SIP you can send the DTMF in 3 flavors. You need to know how<br>
your SIP telephony gateway providers send and expect the DTMF. You<br>configure that in Asterisk file sip.conf, look for the peer parameter<br>"dtmfmode", valid values are:<br><br>dtmfmode=info<br>Use SIP INFO messages to send, this is out of band
<br><br>dtmfmode=rfc2833<br>Actually i dont know, but check RFC2833 :)<br><br>dtmfmode=inband<br>The DTMF digits are sent in the same stream that the audio. This means that<br>if the audio codec is of low quality, DTMF may not pass.
<br><br>dtmfmode=auto<br>Asterisk is supposed to detect the correct DTMF mode to use, actually<br>I havent used this one, but you can give it a try :)<br><br><br>Regards<br><br></blockquote></div>