A GSM card phone is quite easy for me, once the GSM phone it is unlocked ,just pop in your sim card and you are good to go. But what about CDMA phones? Can someone please tell me how to go about activating a CDMA phone? I am so very curious about cdma phones, what happens with the esn? If any esn is registered into a cdma network, how they do it? And if a phone is reported stolen how they stop the esn, do they just block it from the network? Sorry if I am so stupid, please someone throw in some information. Or tell me what books to read, eh?