Thanks to the fact that our banking industry in Australia is... outdated (which is the politest word I could think of when describing the banking industry)... to do a certain kind of transaction our bank requires us to use a dialup modem and send serial data to them.
When reading through their documentation (last update: 1995), they state that any "Soft Modems" (by which I assume they mean internal modems, as they refer to a AMR socket on a motherboard, which I haven't seen in donkeys years) should not be used because of "possible incompatibilities"
Seeing as buying an external, serial-port modem is actually quite expensive these days and I have a whole box of PCI modems taken out of a bunch of Dells I really don't want to have to buy an external modem. Additionally I think their documentation is simply outdated.
Has anyone had experience with internal modems causing issues, where an external modem didn't?
Thanks for the tips everyone. It would appear that my interpretation of what constitutes a 'Soft Modem' was incorrect. It's interesting to see how these concepts evolve over time! 15 year old documentation never helps the cause either!