[comp.os.cpm] Vector 4 modem problems

xd2w@VM.CC.PURDUE.EDU (Bruce Ide) (03/14/89)

     I have recently purchased a vector-4/40 and a lot of disks. It
didn't have a modem, but I have a Sinclair 300/1200 baud modem and
a rs-232 cable that the ports both on the modem and on the computer.
I have Terminal programs, Mex, Modem7 or something like that, and
ASYN something. I can get modem7 to say that it is dialing using the
"Cal" command, however the modem doesn't do anything discernable
(No lights flash or anything). The program says ATDT and stops.
How can I change ATDT to AT DP, and can I "Talk" directly to the
modem through some wierd CP/M or Vector-4 command? Any help would
be appreciated.