T.38 is not a codec. A codec has one input and one output. T.38 is an interactive protocol. This, however, has nothing to do with what I said. If you use G.729 in the same asterisk as my spandsp library, you are breaking my licence conditions.
Steve Rob Hillis wrote: > T.38 is a codec in exactly the same way that GSM or G.729 is a codec, > so yes it /can/ be used at the same time as any other codec - just > that only /one/ codec will be used at a time. What often happens is > that the call will initially be established with a codec such as G.729 > or G.711a, but once fax tones are detected the call will change codecs > to T.38. > > According to the release notes for 1.6.0-b4... > > - 11873, Added core API changes to handle T.38 origination and termination > (The version of app_fax in Asterisk-addons now supports this.) > > > This should be all that is necessary to run a T.38 gateway. > > > Steve Underwood wrote: >> Rob Hillis wrote: >> >>> Not unless you're running CallWeaver or Asterisk 1.6.0-beta4. Asterisk >>> has had passthrough support for T.38 for a while (somewhere in 1.4 it >>> became available IIRC) but is currently completely incapable of >>> terminating or encoding a fax call to T.38. >>> >>> >> I thought * was still not capable for T.38 gateway operation. Doesn't >> beta 4 just added T.38 termination? And, I believe it misses out some >> key elements of doing that properly. Note that T.38 termination is an >> addon, so it can't be used with, say, G.729. >> >>> The only real option available at the moment is to keep one PSTN line on >>> an ATA with an FXO port and T.38 support available and direct calls from >>> the fax machines through to it. However, I should point out that while >>> I believe this should be possible, I haven't actually tried it myself. >>> >>> >>> >> Steve >> _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users