<div dir="ltr">i found the following statement on freeswitch wiki:<div><br><div>"<span style="color:rgb(0,0,0);font-family:sans-serif;font-size:14.8480005264282px;line-height:19.2000007629395px"><b>DTMF intercept w/ DTMF detection, removal and regeneration</b></span></div><div><span style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.8000001907349px;line-height:19.2000007629395px">Detect DTMF using Goertzel and drop samples identified as containing DTMF tones. Regenerate the detected DTMF tones on the opposite leg. </span><b style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.8000001907349px;line-height:19.2000007629395px">This AFAIK is the only DTMF intercept mode supported by FreeSWITCH ATM.</b><b style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.8000001907349px;line-height:19.2000007629395px">"</b></div><div><b style="color:rgb(0,0,0);font-family:sans-serif;font-size:12.8000001907349px;line-height:19.2000007629395px"><br></b></div><div><font color="#000000" face="sans-serif"><span style="font-size:12.8000001907349px;line-height:19.2000007629395px">according to this can we convert outband(rfc2833) dtmf to inband dtmf? </span></font></div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On Mon, Jan 26, 2015 at 3:26 PM, huseyin kalyoncu <span dir="ltr"><<a href="mailto:hkalyoncu@gmail.com" target="_blank">hkalyoncu@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left-width:1px;border-left-color:rgb(204,204,204);border-left-style:solid;padding-left:1ex"><div dir="ltr">hello<div><br></div><div>first i want to thank the developers and contributors of this amazing product. </div><div>we have been using freeswitch for almost 4 years without a major problem.</div><div><br></div><div>i have a question regarding inband dtmf. </div><div>we have receiving calls from telco using dtmf rfc2833. most of outgoing calls also </div><div>dtmf rfc2833. but we have a new outgoing profile which is behind a firewall. we did </div><div>not make a successful call with transport UDP. so we set the transport to TCP and </div><div>now we have successful calls but the only problem is with dtmf. when we set the dtmf to </div><div>rfc2833 for this profile, we saw that dtmf packets do not arrive correctly to outgoing </div><div>destination. when we dig up the problem we realized that there is always a time skew</div><div>on dtmf packets. for this reason we tried to set dtmf inband for this particular outgoing </div><div>profile. to accomplish this we used start_dtmf_generate just before the bridge action. </div><div>but this time no dtmf package arrive at destination. is this dtmf conversion (from rfc2833</div><div> to inband) even possible? </div><div>what should be the correct configuration to achieve this?</div><div> </div><div>thanks</div><span class=""><font color="#888888"><div>huseyin </div><div><br></div></font></span></div>
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