|What do I need to be
concerned with if I upgrade my modem?
If you desire to upgrade your modem, there are many things that you should be aware of. Make sure that you purchase a brand name modem such as US Robotics, Hayes or Diamond (formerly Supra). In my experience, off-brand modems are more trouble than you save in price.
If you purchase an external modem, make sure that you have a serial card with a 16550 UART. If you have a new computer, this should not be a problem.
Make sure you purchase a modem that can be upgraded to the new 56K technology with a simple software update. A lot of the newere brand-name modems support an upgrade method called "flash" upgrades. You'll want a modem that has this capability.
In order to most compatible with Halifax.Com's modems, we recommend that you purchase a X2 compatible modems such as the US Robotics Sportster. However, modems with the K56Flex option will be able to communicate with our modems; they just won't be able to connect above 33,600 bps.
You can read more about 56K modems by visting http://www.56k.com.