RB 411U + Sierra MC8792 Wireless

Hi All,
i am completely new to MTik , Learning Alot,
i need some help or any kind of Advice configuring the sierra MC8792V to work with the RB411U

thank you in advance

I suggest you to start from this document,
http://wiki.mikrotik.com/wiki/Option_Globetrotter_HSDPA_USB_Modem

Thank you for your reply
i can get the modem to work with a external usb 3G stick
i am struggling to get to work with the Sierra wireless card MC 8792v