This site has a lot of drivers or links to driver sources on the page (s) about your modem's at the chipset. The section of troubleshooting contents page and also at the bottom of this page you can find a list of the chipset's one's. this site has driver downloads for lucent/ agree LT win modem as well as links to drivers for most other modems. So no matter what kind of modem you have you can
. find what you need here. You have to know what kind of driver version you are using before you attempt to upgrade. You can look at the driver versions to find this. For more info you can go to http://www.smartcode.com/downloads/ambient-5690-driver-modem-driver-for-download.html