[Spce-user] T.38 <-> G.711 Transcoding

[Raúl Alexis Betancor Santana]

No, rtpengine lacks that transcoding capabilitie, for that you need a full T38 Gateway 


From: "Gabriel Kuri" <gkuri at ieee.org> 
To: "spce-user" <spce-user at lists.sipwise.com> 
Sent: Monday, August 31, 2020 5:56:05 PM 
Subject: [Spce-user] T.38 <-> G.711 Transcoding 

Is it possible for C5 CE (using rtpengine) to transcode between T.38 (a-leg) and G.711 (b-leg) ? 

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.). 

Here's the scenario ... 

A-leg (T.38): Analog Telephone Adapter 
B-leg (G.711): Carrier SIP Trunk 

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? 

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? 

Thanks! 

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