hello, any one has use 3g modem with beaglebone black,

hello, any one has use 3g modem with beaglebone black, i m trying it with sakis3g, but unable to do that. It’s showing this :“Failed to connect”.can any one help me?
thanks

Any errors…? Will be better to put a screen shot. =)

@Sameer_Panchal not showing any error

just showing fail to connect at last step in ./sakis3g --interactive instruction