Peet, You are running a supposedly supported by slusb driver ID 0483:7554 SGS Thomson Microelectronics 56k SoftModem there has been some changes to linux kernel after 2.6.25 that make working with this modem difficult Predictive diagnostics for card in bus 002: Modem chipset detected on SLOT="Bus 002 Device 004:" NAME="SGS Thomson Microelectronics 56k SoftModem" bus=002 USBmodemID=0483:7554 IDENT=slusb Driver=slusb For a detailed USB cellphone usage report, see http://linmodems.technion.ac.il/bigarch/archive-eighth/msg03240.html For candidate modem in: 002 SGS Thomson Microelectronics 56k SoftModem Primary device ID: 0483:7554 Support type needed or chipset: slusb There is a package sl-modem-source providing a source code the modem driver slusb , If can be searched for at http://pacakge.ubuntu.com. After downloading install under Linux with: $ sudo dpkg -i sl*.deb It is preferable to install the dkms package first. With DKMS support installed, driver updates with kernel updates will be automatically done. The modem is supported by the Smartlink slusb plus the slmodemd helper utility. Read the DOCs/Smartlink.txt and Modem/DOCs/YourSystem.txt for follow through guidance. For 2.6.39-2-686-pae compiling drivers is necessary. As of October 2007 the current packages at http://linmodems.technion.ac.il/packages/smartlink/ are the ungrab-winmodem-20070505.tar.gz and slmodem-2.9.11-20080126.tar.gz If you plan to do something you may download slmodem sources, look for the latest file http://linmodems.technion.ac.il/packages/smartlink/slmodem-2.9.11-20110321.tar.gz or look for the sl-modem-source package and check to see if it can configure your modem and make it work. Regards, Antonio On Sat, Jul 16, 2011 at 1:22 PM, Peet <mingqingcom@xxxxxxxxx> wrote: > > > -- > Using Opera's revolutionary email client: http://www.opera.com/mail/