Re: [hylafax-users] MODEM TIMEOUT: waiting for v.21 carrier

[Lee Howard <faxguy@xxxxxxxxxxxxxxxx>]

Daniele Gallarato wrote:
> Hi all. I've this problem with some destination faxes.
> Hylafax try to send fax but fail with this final error:
>
> Failure to train remote modem at 2400 bps or minimum speed

Sep 04 10:48:18.78: [14325]: REMOTE NSF "AD 00 51 5A 00 00 00 00 00 00 00"
Sep 04 10:48:18.78: [14325]: NSF remote fax equipment: Telogy Networks 


This sort of thing tells me (almost with a certainty) that there is a T.38 (FoIP) conversion process involved between you and the receiver.  My first bet is on it (the T.38) being the root of the problem.  Contact your telco or whoever it is that is doing that T.38 and tell them that it's not working.  I've had to be involved in that same discussion many times now, and I always make the same argument:  T.38 is acceptable when it works well, but if it doesn't work well then I want my telco to avoid it altogether.  Normally they just switch the carrier that my calls take.

Thanks,

Lee.


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