I have enabled in ATA's GUI the T.38 codec as the preferred codec, but of course if it detects that the other side doesn't work with T.38, it tries with the following codec preferences like G.711. On the other side there is PSTN, as I deliver my traffic in IP to a Telco that uses also T.38. The fact is that I think Asterisk-t38 branch installation isn't doing T.38 bypass... If it were, G.711 wouldn't be used... I guess...
Any help?

Ricardo.







Edgar Barbosa wrote:

Also, make sure you have a T.38 enabled device at the other end…

Edgar

------------------------------------------------------------------------

*From:* [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] *On Behalf Of *William Piper
*Sent:* quinta-feira, 24 de Agosto de 2006 21:09
*To:* Asterisk Users Mailing List - Non-Commercial Discussion
*Subject:* Re: [asterisk-users] Asterisk t38passthrough

Perhaps a stupid suggestion... but did you make sure that the ATA had the T38 selected in the GUI?

bp

On 8/24/06, *Ricardo Carvalho* <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>> wrote:

Hi,

I've installed Asterisk t38passthrough branch and I'm using one
Grandstream ATA to connect Asterisk to a Fax machine. Every time I send
a fax, it gets sent using codec G711, and never T.38. I added the
following parameters in the [general] section as well as in device
configurations:

t38pt_udptl = yes
t38pt_rtp = yes
t38pt_tcp = yes


I think that's the only thing that is needed to do to enable T.38 pass
through...
Why does Asterisk keeps sending in G711? Any help?

Regards,

Ricardo.
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