Comment 9 for bug 92777

Ok, mattsteven's suggestion worked a treat! I downloaded and manually built and installed the package from linmodems (slmodem-2.9.11-20070430). I then installed sl-modem-daemon from the ubuntu feisty repository (2.9.10+2.9.9d+e-pre2-5ubuntu1). It did not work initially, however I noted his comment regarding the Dell Inspiron 6400. I am using a Dell Inspiron E1505, which is basically the same machine. After editing /etc/default/sl-modem-daemon to change SLMODEMD_DEVICE=auto to SLMODEMD_DEVICE=hw:0 and then a reboot, my modem came to life! Tested using wvdialconf and kppp. BRILLIANT, mattsteven!

This, of course, SHOULD work using the sl-modem-source package in the feisty repositories, so the bug still stands.