<html><body><div style="font-family:Calibri, Arial, Helvetica, sans-serif; font-size:12.0pt; line-height:1.3; color:#1F497D" id="nine_body_n174488-98b5f" class="nine_body" dir="auto"><div class="nine-pg" dir="auto">Hi Gabriel,</div><div class="nine-pg" dir="auto">RTPengine has full t38 t30 support out of box. Basically it works in to mode. So if you set on peer t38 transcode when re-invite comes from subscribers RTPengine will activate t38 transcode.</div><div class="nine-pg" dir="auto">Long time I made short video with demo of t38gateway capabilities: </div><div class="nine-pg" dir="auto"><a href="https://twitter.com/lexxua/status/1248894313528012800?s=19">https://twitter.com/lexxua/status/1248894313528012800?s=19</a></div><div class="nine-pg" dir="auto"><br data-mce-bogus="1"></div><div class="nine-pg" dir="auto">Br,</div><div class="nine-pg" dir="auto">Vova</div><div class="nine-pg blank" dir="auto"><br></div><div id="nine-sign-n174488-98b5f" class="nine_signature nine-pg" dir="auto"><div class="nine-pg" dir="auto"><br></div></div></div><div id="quoted_header_n174488-98b5f" class="quoted_header_editor nine-pg" dir="auto"><hr style="border:none; height:1px; color:#E1E1E1; background-color:#E1E1E1;" class="nine-pg"><div style="border:none; padding:3.0pt 0cm 0cm 0cm" class="nine-pg" dir="auto"><span style="font-size:11.0pt;font-family:Calibri, Arial, Helvetica, sans-serif"><b>From:</b> Gabriel Kuri <gkuri@ieee.org><br><b>Sent:</b> Tuesday, September 1, 2020 07:48<br><b>To:</b> Raúl Alexis Betancor Santana<br><b>Cc:</b> spce-user<br><b>Subject:</b> Re: [Spce-user] T.38 <-> G.711 Transcoding<br></span></div></div><div id="quoted_body_n174488-98b5f" class="quoted_body_editor mceEditable" dir="auto"><div class="nine-pg" dir="auto"><br type="attribution"></div><div dir="ltr" class="nine-pg"><div>Hi Raul,</div><div><br></div><div>I suppose I misunderstood the transcoding capability in rtpengine, I thought it handled T.38 to G.711 transcoding in recent versions.</div><div><br></div><div>Any recommendations on a full T38 gateway that handles full T.38 <--> G.711 transcoding?</div><div><br></div><div>Thanks ...<br></div></div><div class="nine-pg" dir="auto"><br></div><div class="elided-text nine-pg" dir="auto"><div dir="ltr" class="gmail_attr">On Mon, Aug 31, 2020 at 10:37 PM Raúl Alexis Betancor Santana <<a href="mailto:rabs@dimension-virtual.com">rabs@dimension-virtual.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb( 204 , 204 , 204 );padding-left:1ex"><div><div style="font-family:'arial' , 'helvetica' , sans-serif;font-size:12pt;color:rgb( 0 , 0 , 0 )"><div>No, rtpengine lacks that transcoding capabilitie, for that you need a full T38 Gateway</div><div><br></div><hr id="gmail-m_-32894514340532753zwchr"><div><b>From: </b>"Gabriel Kuri" <<a href="mailto:gkuri@ieee.org">gkuri@ieee.org</a>><br><b>To: </b>"spce-user" <<a href="mailto:spce-user@lists.sipwise.com">spce-user@lists.sipwise.com</a>><br><b>Sent: </b>Monday, August 31, 2020 5:56:05 PM<br><b>Subject: </b>[Spce-user] T.38 <-> G.711 Transcoding<br></div><div><br></div><div><div dir="ltr"><div>Is it possible for C5 CE (using rtpengine) to transcode between T.38 (a-leg) and G.711 (b-leg) ?</div><br><div>I've tried setting it up, but I can't figure out how to set the media settings facing each leg (t38_force, t38_decode. etc.).</div><br><div>Here's the scenario ...</div><br><div>A-leg (T.38): Analog Telephone Adapter</div><div>B-leg (G.711): Carrier SIP Trunk</div><br><div>On the A-leg, it would be good if we could force C5 CE to Re-INVITE T.38 to the ATA immediately at the start of the call. But not sure if C5 CE can do the Re-INVITE or if it must come from the ATA?<br></div><br><div>On the B-leg, it would be good if we could stay on G.711 and refuse any T.38 Re-INVITES that may come in from the carrier?</div><br><div>Thanks!<br></div></div>
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