That is good to know you managed to get a PCMCIA modem to work with the A1200. Especially when you consider that a PCMCIA modem was not a common hardware item back in the Amiga days. External Modems that connected to the serial port were the common type back then and would need specific drivers to work.

Is useful to know the PCMCIA modem worked in case others are looking for a similar solution. BTW, what make was the modem?