I tried to find a great, advanced mobile network card manager to Ubuntu with GUI.
And I have found UMTSmon (only).
But, as they say in the download section:
"Debian, Ubuntu: For Debian, some .deb files are available, but these are not maintained in a coordinated fashion yet."
"UMTSmon is a tool to control and monitor a wireless mobile network card (GPRS, EDGE, WCDMA, UMTS, HSDPA) in a laptop running the Linux operating system. It handles PIN codes, operator choice (roaming), signal strength and network statistics, sending/receiving SMS."