Comment 23 for bug 121487

two comments, and a solution for many people:

1. For users of mobile UMTS cards like the Huawei 220 etc., I'd like to point to https://forge.vodafonebetavine.net/projects/vodafonemobilec/
There is a tool called Vodafone Mobile Connect Card driver for Linux. Info from the site:

Vodafone Mobile Connect Card driver for Linux is a GPRS/UMTS/HSDPA device manager written in Python, licensed under the GPL. Features: Data call handling Send/Receive SMS SIM phone book management Graphical user interface using GTK.

2. IMHO this whole issue should be addressed via network-manager in the future. NM 0.7 will be able to handle dial-up connections. I have another problem with dial-up connections. As it is right now, gnome does not now that I am online when I log in via UMTS card. Therefore Evolution and Epiphany put me into offline mode automatically even though I am online really. This is why these connections should be handled by network-manager IMHO.