Making an internal modem work can be tough because of the conflicts in IRQ and COM Ports. Modem cannot share an IRQ or a COM port with any another device especially if the computer is running older operating systems like Windows 3.x, Windows 95 etc. But with Windows 2000 or Windows XP this task is not a problem. Most modems work on a particular setting and hence an instruction manual would be required while configuring it.
The settings should be changed according to the manual. If there is a conflict or the settings do not work then the jumper settings need to be changed. Most modems come with jumper settings. Hence one may change the jumper settings for the desired configuration. Newer modems are plug-n-play types. Hence they get automatically configured as soon as you install them. Incase they do not configure automatically, the plug and play modems also have jumpers and DIP switches.
During the installation of modem, you will be asked to select the type of modem you want from a list. Try and pick the exact modem. If it isn't there, try picking the one closest as possible, such as the internal version of the same modem for an external modem. Most modems do not require a driver. If it is required, then it is called a "host-controlled" modem. This means that the software and not the hardware, does the error checking. These modems can be problematic and it is best to avoid them.
