[Freeswitch-dev] adding an event

hi, I'm using gsmopen and trying to get the current gsm reception, roaming status, battery levels etc. on a regular basis. Currently there is an error when the phone is roaming or there is no or little reception, but this isn't enough for me. I need constant feedback.

From what I can figure, I need to add an event for those cases. What is the best way to do that? Where are the places I should touch?

Thanks, Shlomi Agiv