Supra 288/336 Data/Fax Receive problems

Len Ovens (root@studio.cbbs.org)
Mon, 29 Jun 1998 04:31:38 +0200



> Larry M. Bateman wrote:
> > I have a Supra 288 Modem, which will receive data calls
> > fine, but will give a "NO CARRIER" response sometime
> > after the "ATA" command is given.  If I tweek the source code
> > to leave the modem in the class 2 setting (setting MQ_NEED2),

Shouldn't have to. I don't here with my supra 288 faxmodem. I leave most
things rockwellish and use these two lines depending on if I use a
supra or a Zoltrix (the new ones don't do class 2..... as I found out when
the old one broke and they replaced it... the old one did)

# zoltrix
  init-chat "" \d\d\d+++\d\d\dAT&Fs7=60s95=6MH#CID=1 OK 
# supra
  init-chat "" \d\d\d+++\d\d\dAT&F2w0s7=60s95=6MH#CID=1 OK 

The s95=6 is just so the the carrier rate will show.
Here are the policy.h things I last used:

#define DEFAULT_PORTSPEED       38400
#I don't know if mgetty sets this or lets the system... the system is set to 
# set 38400 things 115200

#define MODEM_CMD_SUFFIX "\r"
#define DEFAULT_MODEMTYPE "cls2"
#define DO_CHAT_SEND_DELAY 50
#define FAX_COMMAND_DELAY 50
#define DATA_FLOW       FLOW_HARD
#define FAXREC_FLOW     FLOW_HARD | FLOW_SOFT
#define FAXSEND_FLOW    FLOW_HARD | FLOW_SOFT
#define FAX_RECV_SWITCHBD 19200
#define FAX_SEND_BAUD 19200
#define FAX_MODEM_HANDSHAKE "AT&K3"
#define FAX_DIAL_PREFIX "ATDT"

I haven't sent any faxes at all, but have received lots.... more junque ones
than usefull. The one thing to remember is that the supra looks for the fax
pilot tone first and if not found will assume data. That is those people who
dial the fax number by hand, wait for the answer tone and then start the fax
machine will not be able to send you a fax. There is an s switch that will
try a data connect first and if it fails, assume fax. However, ALL failed
calls will appear to be failed faxes. The full list of supra commands can be
had from the supra bbs and, I would assume, their web site. (which may now
be under diamond) If you can't find it... send me an Email address and I
will file attach them to you.

Len