MDMA is a small but very convenient tool (~ 110KB) for Windows, which supports dialup and sending USSD-commands for a lot of devices. Especially the USSD-functionality is a great feature for many users, since a lot of dashboards (like Huawei's "Mobile Partner") lack such.
Before starting MDMA make sure any other application (e.g. dashboards like "Mobile Partner"), that could access your 3G modem, is completely closed. Otherwise MDMA may not be able to communicate with your device.



download
http://www.nerve.org.za/mdma/

Weblinks
developers site/download source: http://www.nerve.org.za/mdma/