Try this in your dialplan before sending the call to the conference:<br><a href="http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_start_dtmf">http://wiki.freeswitch.org/wiki/Misc._Dialplan_Tools_start_dtmf</a><br>-MC<br>
<br><div class="gmail_quote">On Thu, Mar 1, 2012 at 5:30 PM, Erjian Li <span dir="ltr"><<a href="mailto:eli@netspectrum.com">eli@netspectrum.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
When I press cellphone's key, although Freeswitch can't see this DTMF, but the the other participant of the conference call can hear my DTMF tone. Does this situation indicates that the DTMF tone has been forwarded by SIP provider's server? <br>
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