[osu.network] Microcom AX/9624c problems

bob@MorningStar.Com (Bob Sutterfield) (01/19/90)

I have a Microcom AX/9624c modem with which I'm attempting to connect
with another reputedly-similar Microcom modem (attached to the OSU
Micom switch at -3196).  I'm talking to my end at 19200bps and I'm
attempting to set up a connection at 9600bps with MNP class 6
("High-Speed Reliable").

I have gone through the instructions beginning on page 13 of the
owner's manual, but all I get when I connect to the other end (if I
get a carrier at all) is "connect 2400".  I see no evidence that I
have a reliable 2400bps connection, nor that the two modems are
upshifting to the desired rate of 9600 reliable.  (Perhaps there are
problems with the double-clutch?)

What different switch settings and register contents should I try?
Any suggestions would be greatly appreciated.