Practical Peripherals PM288MT II V.34 Modem

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> If you are using a Practical Peripherals modem with mgetty to receive FAXes,
> please read on.
> 
> I am using a Practical Peripherals PM288MT II V.34 modem with mgetty and
> rarely am able to receive a FAX sent by a FAX machine which uses "fine"
> resolution. Normal resolution FAXes arrive without trouble as well as some
> fine resolution FAXes sent by FAX modems. Attached is an mgetty log
> documenting a failure.
> 

Hi,

I am running the HylaFAX Software on AIX using some PP Modems. Never for 
receive though, because they are not very good modems from a reliablity 
perspective.

When the HylaFAX software was being written ( Called FlexFAX, back then ),
this problem was encountered. I have been on the "beta" list of HylaFAX
for years, & remember the problem.

What ended up happening is that Sam Leffler ( the author of HylaFAX ) put in
an command in the config files called

Class2DDISCmd:  AT+FDIS  # enable workaround for broken +FDIS

By my failing memory, the problem has something to do with resolution changes
negotiated AFTER the modem has dialed. PP modems are not able to re-set the 
resolution AFTER they have dialed. The resolution can only be set prior to 
dialing the modem.

I may be off base a bit on this, & if this is new information to Gert/the
list, I can look into the source of HylaFAX & see exactly what is going on.

Let me know,

-- 
	Steve Williams, Calgary, Alberta, Canada
	Genie Computer Systems Inc.
	steve@genie96.com
.