Have modem Huawei E1550, unlocked (originally from MTS). Modem all wonderful, but on Windows I have not found nejasneho software (but on Ubuntu everything is super). Programs from our Opsosov crowded sustainlane, trying to jump everywhere and even show ads. Of course, you can just connect through "Network connections", but I'm interested in more of USSD, SMS and voice calls (which has to do MTS connect). If there's any necessary Manager, prompt.