Where to find the Agere Win Modem Driver (Formerly LT Win Modem Driver or Lucent Win Modem Driver):

Modemsite.com has "generic" Agere (Lucent/LT) Win Modem Drivers available for download here (requires Premium Access). The latest generic driver is 8.30 and supports all modems based on the "LT" chipsets, and all Windows operating systems including Win9x,Me,NT4,2K and XP. This driver supports V.90 and lower protocols with all chipsets; V.92/V.44 is supported only with Mars3.2 chipset. Modemsite's LT Driver Section also has updated Modem-on-hold applet version 1.76. Modemsite maintains 'Readme' files for the various driver releases - the 8.30 readme includes information on notebook install problem/solution.

LSI/Agere's  website has generic driver version 8.30.

8.31 driver - may be offered by Microsoft Windows Update or supplied by system manufacturer. The 8.31 driver was a special build for an Agere customer that fixes an obscure problem not likely to be encountered by most users. Because this driver did not undergo the testing normally done with general driver releases, Agere is not making this a general release and it won't appear at Modemsite. So, why is it on Windows Update? [When a driver is submitted to Microsoft's WHQL for testing and driver signature, the submitter indicates whether the driver is to be made available via Windows update.] Should you upgrade to 8.31? [It's safer to stay with 8.30.]

Info on V.92 & LT Win Modem

LT Driver Downloads from Modemsite.com - including LT Modem-on-Hold 1.76, 1.72, 1.71, 1.70, 1.68 and 1.64 for V.92 modems, as well as old and new generic drivers. Download of these drivers is a premium feature available with your ad-free access code. This download area also has a zipped 6.04 package that will work with Windows Me, 2K and XP.

8.30    8.28    8.24   8.22  8.18   8.17   6.0   5.97   5.92  5.87   5.75   5.70   5.66   5.65   5.54   5.53   5.49   5.44   5.43   5.39   5.32   8.10  8.20*  6.04* 8.02-special for disconnect on call waiting with V.90 modems

* - 8.20 and 6.04 are designed for WinXP and should work in WinXP, 2K, and Me, but not Win9x or NT.

Windows Update - Caution! As of 7-Oct-03, the Microsoft Windows Update site may offer version 8.30. In Mar-03, Microsoft added driver version 8.27 to Windows Update for XP. 8.27 is a special build that disables V.92 and V.44 to prevent a rare compatibility issue that will be addressed in a later release. This isn't a good choice for anyone wanting to use "the latest and greatest". XP users may find this driver automatically installed depending upon Windows Update settings! Also see: 22-Mar-03 V.92 News.

The latest version may not work as well as older versions for some people. Use the version that's best for you & archive your current version.  If you are getting 28.8k or lower connects with old driver, the new driver might give you a big boost -or- it might cause you to get an even lower connect rate. If you get a lower connect with the latest driver, see Trouble with the LT on this page, the Troubleshooting Page, or revert back to the older driver you were using before the update. The handshake sound has changed with version 5.49.

Note: With driver version 5.44 & higher, the .inf file renames the modem from "LT Win Modem" to "Lucent Win Modem". If your modem is renamed, you will need to adjust Dial-Up Networking connections.

* - The 6.04 (and 8.12) generic, as well as some vendor-specific downloads are available from the Windows Update Site for WindowsXP. If you have XP and a Microsoft-recognized LT modem, the Windows Update Site should allow you to download these drivers when you scan for updates. If you are not running XP, it appears to be impossible to get this update from Microsoft - see the 16-Feb-02 Latest Update. (The package is available as a zipped file from Modemsite.com's Premium Access Content.) The driver package does not include support for Win9x, or NT. See THIS PAGE for more information.