I got one of these from iitem.com last month. It was not an Agere/Lucent modem. Iitem.com does not reply to my emails and they are very difficult to reach by phone. The modem I received has an Agere chip SV92P whereas the Agere/Lucent chip is marked DSP1648 (I have one already). When booting XP this modem is not detected as a Lucent either. I tried to install Lucent firmware with no success. Using the supplied CD I did get it to work and it does support V.92. Proper handshake and all. Tested for bandwidth and found it is not as good as the Lucent chip modem. I will not buy from iitem.com again.
LINUX users - there are drivers for your OS and the Lucent Winmodem. My real Agere/Lucent Winmodem came with a CD that had firmware for Windows 95, 98, 2000, NT, 4.0, ME, XP, and LINUX.