internal static extern int cstaRouteRegisterReq(IntPtr acsHandle, uint invokeID, ref DeviceID_t routingDevice, ref PrivateData_t privateData);
internal static extern int cstaRouteSelectInv(IntPtr acsHandle, uint invokeID, int routeRegisterReqID, int routingCrossRefID, ref DeviceID_t routeSelected, short remainRetry, ref SetUpValues_t setupInformation, bool routeUsedReq, ref PrivateData_t privateData);
internal static extern int cstaMonitorCallsViaDevice(IntPtr acsHandle, uint invokeID, ref DeviceID_t deviceID, ref CSTAMonitorFilter_t monitorFilter, IntPtr privateData);
internal static extern int cstaSnapshotDeviceReq(IntPtr acsHandle, uint invokeID, ref DeviceID_t snapshotObj, IntPtr privateData);
internal static extern int cstaSetDoNotDisturb(IntPtr acsHandle, uint invokeID, ref DeviceID_t device, bool doNotDisturb, IntPtr privateData);
internal static extern int cstaQueryDeviceInfo(IntPtr acsHandle, uint invokeID, ref DeviceID_t deviceID, IntPtr privateData);
internal static extern int cstaQueryForwarding(IntPtr acsHandle, uint invokeID, ref DeviceID_t device, ref PrivateData_t privateData);
internal static extern int cstaMakePredictiveCall(IntPtr acsHandle, uint invokeID, ref DeviceID_t callingDevice, ref DeviceID_t calledDevice, AllocationState_t allocationState, ref PrivateData_t privateData);
internal static extern int cstaQueryMsgWaitingInd(IntPtr acsHandle, uint invokeID, ref DeviceID_t device, ref PrivateData_t privateData);
internal static extern int cstaQueryDoNotDisturb(IntPtr acsHandle, uint invokeID, ref DeviceID_t device, ref PrivateData_t privateData);
internal static extern int cstaSetAgentState(IntPtr acsHandle, uint invokeID, ref DeviceID_t device, AgentMode_t agentMode, ref AgentID_t agentID, IntPtr agentGroup, IntPtr agentPassword, ref PrivateData_t privateData);
internal static extern int cstaSetAgentState(IntPtr acsHandle, uint invokeID, ref DeviceID_t device, AgentMode_t agentMode, ref AgentID_t agentID, ref DeviceID_t agentGroup, [MarshalAs(UnmanagedType.LPTStr)] string agentPassword, IntPtr privateData);
internal static extern int cstaSetForwarding(IntPtr acsHandle, uint invokeID, ref DeviceID_t device, ForwardingType_t forwardingType, bool forwardingOn, ref DeviceID_t forwardingDestination, ref PrivateData_t privateData);
internal static extern int cstaConsultationCall(IntPtr acsHandle, uint invokeID, ref ConnectionID_t activeCall, ref DeviceID_t calledDevice, ref PrivateData_t privateData);
internal static extern int cstaQueryAgentState(IntPtr acsHandle, uint invokeID, ref DeviceID_t device, ref PrivateData_t privateData);
internal static extern int cstaMakeCall(IntPtr acsHandle, uint invokeID, ref DeviceID_t callingDevice, ref DeviceID_t calledDevice, ref PrivateData_t privateData);
internal static extern int cstaQueryLastNumber(IntPtr acsHandle, uint invokeID, ref DeviceID_t device, ref PrivateData_t privateData);
internal static extern int cstaPickupCall(IntPtr acsHandle, uint invokeID, ref ConnectionID_t deflectCall, ref DeviceID_t calledDevice, IntPtr privateData);
internal static extern int cstaSetMsgWaitingInd(IntPtr acsHandle, uint invokeID, ref DeviceID_t device, bool messages, ref PrivateData_t privateData);
