[Asterisk-Users] FXO as modem (was: * fax reliability between ISDN PRI and FXS ports)

[Jerry]

Rich Adamson <radamson at routers.com> wrote:
>
>> I have been investigating on this list and found that faxing is not
>> reliable between Zaptel
>> cards and that Digium does not support nor
>> recommend fax over the TDMXXB interfaces.
>>
>> Is this true ?  Will fax not be reliable enough for my customer ?
>
> True... the TDM card (or its drivers) has an issue with missed frames
> that seriously impacts its ability to handle _any_ modem-type calls.

Question: There are problems using FXS ports to pass data and get high
speed access, but can an FXO port be used as a modem? Nothing fancy
required, 12 or 2400 baud should be ok (9600+ would be nice, but practical
over nice). I know there is something like this with the "FAX" extension
already. (Not sure if there is a "DATA" equivelent). Is this practical?
Has anyone done this?

Thanks,
J.