flexfax: Resolved (Thanks) Multi-Tech MT3334ZDX outgoing fax configuration

[Alan Hanson <ahanson@vermeermfg.com>]

Special thanks to the following for help in getting the Multi-Tech
MT3334ZDX Modem working with the HylaFAX software:

Glen Burkhardt
Matthias Reich
Jeff Jones 

The following entries for the config.ttyX resolved all for outgoing
faxes at this site.
 
Server: Solaris 2.7
Hylafax 4.0pl2

> ModemHardFlowCmd:       AT&K3           # hardware flow control
> ModemSoftFlowCmd:       AT&K4           # software flow control 
> ModemSetupDTRCmd:       AT&D3           # setup so DTR drop resets modem 
> ModemSetupDCDCmd:       AT&C1           # setup so DCD reflects carrier (or not)
> ModemSetupAACmd:        AT+FAA=1        # enable adaptive-answer in class 2 
> #
> # NB: some models get confused by the @ 
> # 
> ModemDialCmd:           ATDT%s          # T for tone dialing, @ for silence 
> # 
> Class2RecvDataTrigger:  "\022"          # character sent to modem to start recv