[asterisk-users] Asterisk Faxing Support

[Andrew Joakimsen]

Asterisk 1.2 has no support of t.38 whatsoever, the call will drop
before t.38 is ever utilised, not even pass-thru.

1.4 Adds support for T.38 pass through only and no other sort of
faxing, the endpoint must support T.38 and you must send your call to
a T.38 gateway and you must not use NAT anywhere in  your network and
you must enable re-invites which could cause CDRs not to reflect the
true details of the call.

Asterisk/Digium also has no interest in any further interest in
expanding T.38 or faxing support in Asterisk.

Steve Underwood and the other fine persons that have helped to develop
the software DSPs and other stuff required for FoIP support also have
no interest in writing any further faxing support for Asterisk (RxFax,
TxFax + the newest span_dsp wont even compile, much less work under
Asterisk any more) probably because they know it will never be
included into the Asterisk code.

On 2/5/07, Checkov, Andrew <acheck at astelnet.net> wrote:

> Some addition: I tried the same boxes with Asterisk 1.2 and 1.4 - no success
> at all - it seems that you can get T.38 with Asterisk ONLY with
> Reinvite enabled (but it doesn't work reliable in case of NAT) -
> no T.38 passthrough as with openpbx.org.
>