[Duo2400] 280c modem trouble

[Roger Gouin]

At 9:33 PM -0700 3/4/03, B. Dowler wrote:
>With a lot of sweat and frustration along with some helpful hints from the
>list and the archives, I have finally resurected my 280c modem to the point
>where I can get a dial tone.  I have loaded Apple Telecom 2.3.3 onto system
>7.5 with Free PPP.  However, even though the modem can be found and there
>is a dial tone, the modem is  unrecognizable at times and is recognizable
>at other times.  It will identify the modem but with different symbols in
>the connection window on each connection attempt.  It will even dial up on
>occasion, make a conncection, but the connection will not be stable and
>e-mail access has not been achieved. Is there something else that I need to
>do?  Do I need to place an init string into the PPP?  Would installing Geo
>Port - EM updater 3.0 help/duty?  Perhaps a higher OS like 8.1?
>

Apple Telecom is looking for OS 7.5.3, so you may have to reinstall 
it after updating the OS. You can also look up info about SerialDMA 
which may make a difference.

Roger,