Check the modem documentation, web site or call the manufacturer. The init string will be used on every dial-up networking connection that uses that modem. If you have more than one modem, you will need to repeat the above procedure for all installed modems. Modem drivers Modem manufacturers continually tweak and refine their modem software in an effort to ensure the peak performance of their products. You should ensure that you are using the latest driver software for your modem.
Most manufacturers make copies of their latest software available for download on their Web sites.
As a general rule, the updated software will include a setup program, so installation is simply a matter of downloading the setup software and running it. Modem port speeds External modems connect to your computer via one of the communications ports located at the rear of your computer. Some older PCs, however, have slower serial cards, which can have difficulties keeping up with faster modems. Consequently, if you use a fast 56K modem in conjunction with an older PC, you may experience unstable connections. Consult your sales documentation or speak with the vendor to ascertain what type of serial card your PC has and whether it is suitable for the speed modem that you are using.