Harisprasad, scanModem reports that your modem is supported through hsfmodem-drivers from linuxant. Predictive diagnostics for card in bus 00:1b.0: Modem chipset detected on NAME="Audio device: Intel Corporation 82801G " package="both hcfpcimodem and hsfmodem" CLASS=0403 PCIDEV=8086:27d8 SUBSYS=8086:d607 IRQ=22 IDENT=HCF.HSF For candidate modem in: 00:1b.0 0403 Audio device: Intel Corporation 82801G Primary device ID: 8086:27d8 Support type needed or chipset: HCF.HSF Writing DOCs/Intel.txt For owners of a Dell PCs with Conexant HSF modems, a driver source package with full speed enabled is available, but requires driver compiling. Read DOCs/Conexant.txt 8086:27d8 could be either a HSF or HCF Conexant modem, because of ambiguous use of the PCI ID by modem assemblers. First try the hcfpcimodem package. If the installation aborts, then use the hsfmodem package. Read DOCs/Conexant.txt for details and Modem/DOCs/YourSystem.txt for follow through guidance. For all code packages from Linuxant.com, either a driver set matching the boot kernel will be installed, or the drivers will first be compiled and then installed. The expert on modem software for Linux is "Support (Jonathan)" <modem.support@xxxxxxxxxxxx> From http://www.linuxant.com/drivers/hsf/full/downloads-ubuntu-x86.php download hsfmodem-7.80.02.06full_k2.6.28_11_generic_ubuntu_i386.deb.zip Under Linux unpack with: $ unzip hsfmodem*.zip Then install with: $ sudo dpkg -i hsfmodem*.deb Subsequently, the modem should be found with $ sudo wvdialconf /etc/wvdial.conf Edit in your personal information with: $ sudo gedit /etc/wvdial.conf and try dialing out with: $ sudo wvdial. See DOCs/Testing.txt for details. Follow these instructions carefully and you might also need to install alsa-driver-* package from linuxant. Regards, Antonio