>http://www.justasec.com/inventorytext.html#Multiplexors/Modem
24/96 Modem $15
>http://www2.ashmor.com/ashmor/
various 9600 & 2400 baud external modems < $35
There were lots more using Alta Vista and "used modems" for the search.
All you then need is a null modem adapter and possibly a gender changer,
OgCOMM or CIM for GEOS and voila you're communicating using your OGO.
Why pay more?
Chris
Christopher Paradies, Ph.D.
internet: paradies@epfl.ch
address: EPFL, LMPH, DMX-G 333
CH-1015 Lausanne, Switzerland