Here are the classes, structs, unions and interfaces with brief descriptions:

COfonoCallBarring	This class is used to access oFono call barring API
COfonoCallForwarding	This class is used to access oFono call forwarding API
COfonoCallMeter	This class is used to access oFono call meter API
COfonoCallSettings	This class is used to access oFono call settings API
COfonoCallVolume	This class is used to access oFono call volume API
COfonoCellBroadcast	This class is used to access oFono cell broadcast API
COfonoConnMan	This class is used to access oFono connman API
COfonoConnmanContext	This class is used to access oFono connman context API
COfonoConnmanStruct
COfonoMessage	This class is used to access oFono message API
COfonoMessageManager	This class is used to access oFono message manager API
COfonoMessageManagerStruct
COfonoMessageWaiting	This class is used to access oFono message waiting API
COfonoModem	This class is used to access an oFono modem object and its properties
COfonoModemInterface	This class implements a generic modem interface object
COfonoModemManager	Provides access to the list of available modems and changes in that list
COfonoNetworkOperator	This class is used to access oFono network operator API
COfonoNetworkRegistration	This class is used to access oFono network registration API
COfonoPhonebook	This class is used to access oFono phonebook API
COfonoRadioSettings	This class is used to access oFono radio settings API
COfonoSimManager	This class is used to access oFono SIM API
COfonoSupplementaryServices	This class is used to access oFono supplementary services API
COfonoVoiceCall	This class is used to access oFono voice call API
COfonoVoiceCallManager	This class is used to access oFono voice call manager API
COfonoVoiceCallManagerStruct