do anybody know how to make this wwan to show like modem? the problem is with at commands, i also rebranded my card to show as generic sierra, not as dell, the ATD*99# does not work also on Windows from putty but the device works as a modem and connects also in linux works as a modem but i cannot make it to work in mac os, from terminal "screen /dev/tty.wwan 115200" i can see the network operator name the modem is up but i cannot connect manualy as gprs or as a modem data device, so i want to ask does anybody help me? i learned a lot like at commands and stuff, any help apricieted, i can also help a lot of you to install your modems and change also com ports.