Thanks for clarify.. so Asterisk will be able to receive faxes which comes from a Gateway using t38 but will not be able to relay faxes which comes from PSTN through a FXO card to other Gateway using t38

can this version of app_fax be used with Asterisk 1.4x ?


Steve Underwood wrote:
zoa wrote:
T.38 will not work with the fxo card.

Zoa
That statement is a bit vague. What has been put in add-ons so far is only support for T.38 termination. Not T.38 gateway operation.

Steve

Fernando Berretta wrote:
Dear All,

Are you telling me Asterisk 1.6.0b2/4 has support for t38 and rxfax etc. and will be able to receive faxes and negotiate with voip CPE's like ATA's to transmit faxes which comes from FXO cards to VoIP Devices using T38 ? it is possible to compile this version of app_fax to work with Asterisk 1.4x ? Someone has tried it ?

Best Regards,
Fernando

Thomas Kenyon wrote:
Steve Underwood wrote:
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.

The new asterisk T.38 functionality is from the Asterisk addons 1.6.0b2 version of app_fax (and a few small changes in 1.6.0b4), which I thought someone would have mentioned to you, since it does use spandsp.

(Or at least the configure script checks for spandsp, I haven't actually looked at the code).



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