This inheritance list is sorted roughly, but not completely, alphabetically:

CListener
Clinphone::AccountCreatorListener	An object to handle the responses callbacks for handling the AccountCreator operations
Clinphone::AccountListener	An object to handle the callbacks for the handling of Account objects
Clinphone::AccountManagerServicesRequestListener	An object to handle the callbacks for AccountManagerServicesRequest object
Clinphone::AlertListener	Object that represents a callback attached to an alert
Clinphone::CallListener	That class holds all the callbacks which are called by Call objects
Clinphone::ChatMessageListener	An object to handle the callbacks for the handling a ChatMessage objects
Clinphone::ChatRoomListener	An object to handle the callbacks for the handling a ChatRoom objects
Clinphone::ConferenceListener	An object to handle the callbacks for the handling a Conference objects
Clinphone::ConferenceSchedulerListener	Callbacks of ConferenceScheduler object
Clinphone::CoreListener	That class holds all the callbacks which are called by Core
Clinphone::EventListener	An object to handle the callbacks for handling the Event operations
Clinphone::FriendListListener	An object to handle the callbacks for Friend synchronization
Clinphone::FriendListener	An object to handle the callbacks for Friend
Clinphone::LoggingServiceListener	Listener for LoggingService
Clinphone::MagicSearchListener	MagicSearchListener is an interface to be notified of results of contact searches initiated from the MagicSearch
Clinphone::ParticipantDeviceListener	An object to handle the callbacks for the handling a ParticipantDevice objects
Clinphone::PlayerListener	An object to handle the callbacks for the handling a Player objects
Clinphone::XmlRpcRequestListener	An object to handle the callbacks for handling the XmlRpcRequest operations
CMultiListenableObject
Clinphone::Account	Object that represents a Linphone Account
Clinphone::AccountCreator	The object used to configure an account on a server via XML-RPC, see https://wiki.linphone.org/xwiki/wiki/public/view/Lib/Features/Override%20account%20creator%20request/
Clinphone::AccountManagerServicesRequest	Request object created by AccountManagerServices
Clinphone::Alert	Object that represents an alert
Clinphone::Call	This object represents a call issued or received by the Core
Clinphone::ChatMessage	A ChatMessage represents an instant message that can be send or received through a ChatRoom
Clinphone::ChatRoom	A chat room is the place where ChatMessage are exchanged
Clinphone::Conference	A conference is the object that allow to make calls when there are 2 or more participants
Clinphone::ConferenceScheduler	Creates and manages conferences on a conferenceing service, and send conference invitations to notify participants
Clinphone::Core	Main object to instanciate and on which to keep a reference
Clinphone::Event	Object representing an event state, which is subcribed or published
Clinphone::Friend	This object is used to store a SIP address
Clinphone::FriendList	This object representing a list of Friend
Clinphone::LoggingService	Singleton class giving access to logging features
Clinphone::MagicSearch	A MagicSearch is used to search for contacts from various sources:
Clinphone::ParticipantDevice	This object represents a unique device for a member of a Conference or ChatRoom
Clinphone::Player	Player interface
Clinphone::XmlRpcRequest	The XmlRpcRequest object representing a XML-RPC request to be sent
CObject
Clinphone::AccountDevice	Object that represents a device that at least once was connected to a given account
Clinphone::AccountManagerServices	Creates and manage SIP user accounts remotely, using the REST API of the Flexisip Account Manager
Clinphone::AccountParams	Object that is used to set the different parameters of a Account
Clinphone::Address	Object that represents a parsed SIP address
Clinphone::AudioDevice	Object holding audio device information
Clinphone::AuthInfo	Object holding authentication information
Clinphone::BearerToken	Object that represents a bearer token (eg OAUTH)
Clinphone::Buffer	The object representing a data buffer
Clinphone::CallLog	Object used to keep track of all calls initiated, received or missed
Clinphone::CallParams	An object containing various parameters of a Call
Clinphone::CallStats	This object carry various statistic informations regarding the quality of an audio or video stream for a given Call
Clinphone::CardDavParams	The CardDavParams object represents a remote CardDAV server used by MagicSearch as a plugin source
Clinphone::ChatMessageReaction	A chat message reaction is an emoji sent by someone in the same chat room to react to a specific ChatMessage
Clinphone::ChatParams	Object defining settings strictly associated with ChatRoom objects such as ephemeral settings and backends
Clinphone::ChatRoomParams	Object defining parameters for a ChatRoom
Clinphone::ConferenceInfo	Object defining all information related to a past or future conference
Clinphone::ConferenceParams	Object defining parameters for a Conference
Clinphone::Config	This object is used to manipulate a configuration file
Clinphone::Content	This object holds data that can be embedded in a signaling message or IM message
Clinphone::DialPlan	Represents a dial plan
Clinphone::Dictionary	Object that represents key-value pair container
Clinphone::DigestAuthenticationPolicy	The DigestAuthenticationPolicy holds parameters relative to digest authentication procedures
Clinphone::EktInfo	Object representing all informations present in an Encrypted Key Transport event
Clinphone::ErrorInfo	Object representing full details about a signaling error or status
Clinphone::EventLog	Object that represents an event that must be stored in database
Clinphone::Factory	The factory is a singleton object devoted to the creation of all the objects of Liblinphone that cannot be created by Core itself
Clinphone::FriendDevice	Object that represents a Friend's device (name, trust level) for a given SIP address
Clinphone::FriendPhoneNumber	Object that represents a Friend's phone number
Clinphone::Headers	Object representing a chain of protocol headers
Clinphone::ImNotifPolicy	Policy to use to send/receive instant messaging composing/delivery/display notifications
Clinphone::InfoMessage	Object representing an informational message sent or received by the core
Clinphone::Ldap	Object that represents a LDAP connection
Clinphone::LdapParams	Object that is used to set the different parameters of a Ldap
Clinphone::MessageWaitingIndication	Object representing a Message Waiting Indication
Clinphone::MessageWaitingIndicationSummary	Object representing the summary for a context in a Message Waiting Indication
Clinphone::NatPolicy	Policy to use to pass through NATs/firewalls
Clinphone::Participant	Identifies a member of a Conference or ChatRoom
Clinphone::ParticipantDeviceIdentity	This object is only used on server side for ChatRoom with ChatRoom::Backend::FlexisipChat backend
Clinphone::ParticipantImdnState	This object represents the delivery/display state of a given chat message for a given participant
Clinphone::ParticipantInfo	Object defining all information related to a participant
Clinphone::PayloadType	Object representing an RTP payload type
Clinphone::PresenceActivity	Presence activity type holding information about a presence activity
Clinphone::PresenceModel	Presence model type holding information about the presence of a person
Clinphone::PresenceNote	Presence note type holding information about a presence note
Clinphone::PresencePerson	Presence person holding information about a presence person
Clinphone::PresenceService	Presence service type holding information about a presence service
Clinphone::ProxyConfig	Represents an account configuration to be used by Core
Clinphone::PushNotificationConfig	Object holding push notification configuration that will be set in the contact URI parameters of the Contact header in the REGISTER, if the AccountParams is configured to allow push notifications, see AccountParams::setPushNotificationAllowed()
Clinphone::PushNotificationMessage	Object holding chat message data received by a push notification on iOS platform only
Clinphone::Range	Structure describing a range of integers
Clinphone::Recorder	Interface used to record audio and video into files
Clinphone::RecorderParams	Object containing various parameters of a Recorder
Clinphone::RemoteContactDirectory	Object that represents a remote contact directory such as a LDAP or CardDAV server; used as a MagicSearch source
Clinphone::SearchResult	The SearchResult object represents a result of a search initiated from a MagicSearch
Clinphone::SignalInformation	Object to get signal (wifi/4G etc...) informations
Clinphone::Transports	SIP transports & ports configuration object
Clinphone::Tunnel	Linphone tunnel object
Clinphone::TunnelConfig	Tunnel settings
Clinphone::Vcard	Object storing contact information using vCard 4.0 format
Clinphone::VideoActivationPolicy	Object describing policy regarding video streams establishments
Clinphone::VideoDefinition	This object represents a video definition, eg
Clinphone::VideoSourceDescriptor	Object that is used to describe a video source
Clinphone::XmlRpcSession	The XmlRpcSession object used to send XML-RPC requests and handle their responses