[Asterisk-Users] Digium cards, so disappointing !

[Kevin P. Fleming]

Rusty Dekema wrote:

> If this works, I don't see why a fax transmission wouldn't work. Is it
> because the fax protocol doesn't have error correction? Is that even
> true?

FAX transmission is massively more complex than modem transmission. At
higher speeds, it involves 3 or 4 different 'carrier' frequencies and
signaling rate shifts, and these are done with very critical timing
requirements.

Yes, error correction is available, but it just means that sending FAXes
over a lousy connection will take a very long time, instead of failing
completely.