This pdf gives u details about operating a MODEM or MOBILE using AT commands and these are specially for ZTE make modems
GSM Modules ATATATATCommandCommandCommandCommandManualManualManualManualForForForForZTEZTEZTEZTECorporationCorporationCorporationCorporationssssME3000ME3000ME3000ME3000ModuleModuleModuleModuleVER:…