Re: flexfax: too much delay between TCF and +FDR

[Robert Colquhoun <rjc@trump.net.au>]

Hi Henrik,

Recently i setup receiving faxes on a production machine running 4.0pl1
with USR Courier V.Everything modems.

About 10-20% of the incoming calls failed with a "Unspecified Phase C
Error...too much delay between TCF and +FDR...".  The errors were coming
consistently from certain machines.

After mistakenly trying to fool around with the modem S-Registers, i turned
the debugging level up and realised the error was caused by the Server's
copy quality checking.  The Courier's copy quality checking is by default
disabled with the getty doing checking on incoming data.

In the log consistently for the bad numbers there was an entry
	"2% lines good (95% required)"

Adding to the modems config:
MaxConsecutiveBadLines:	0		# don't check (default is 5)
PercentGoodLines:	0		# don't check (default is 95%)

fixed the problem.

Somewhat surprisingly the incoming facsimiles were perfectly ledgible, and
running the cqtest utility on the resulting tiff files showed no errors.

Puzzled, but with a running system....

- Robert