/in/call.cpp:52:52: error: 'first' is a private member of 'Dlist<Call>'
        while (!eventQueue.isEmpty() && eventQueue.first()->timestamp == currentTime) {
                                                   ^
/in/Compile/dlist.h:54:13: note: declared private here
    node   *first; // The pointer to the first node (NULL if none)
            ^
/in/call.cpp:52:57: error: called object type 'Dlist<Call>::node *' is not a function or function pointer
        while (!eventQueue.isEmpty() && eventQueue.first()->timestamp == currentTime) {
                                        ~~~~~~~~~~~~~~~~^
2 errors generated.
/in/Compile/Makefile:39: recipe for target 'buildCall' failed
make: *** [buildCall] Error 1