Here is a list of all documented namespace members with links to the namespaces they belong to:

AgentState : ADAPI
AgentStateReasonType : ADAPI
AudioNotificationType : ADAPI
CallDisconnectCause : ADAPI
CallState : ADAPI
ContactSource : ADAPI
CustomerSegment : ADAPI
Direction : ADAPI
DisplayNameFormat : ADAPI
DispositionSystemType : ADAPI
DispositionType : ADAPI
InteractionType : ADAPI
ItemState : ADAPI
LicenseStatus : ADAPI
MediaType : ADAPI
PartyConnectMode : ADAPI
PartyRole : ADAPI
PhoneDeviceType : ADAPI
PhoneType : ADAPI
PopupAction : ADAPI
PresenceState : ADAPI
Privilege : ADAPI
ResultCode : ADAPI
ServiceMediaType : ADAPI