Make Call in BB10

.pro

LIBS += -lbbsystem

app.cpp

//in the header
#include <bb/system/phone/Phone>


....

// remember to set the context property to somethin
QmlDocument *qml = QmlDocument::create("asset:///main.qml").parent(this);
// place it after the above line
qml->setContextProperty("appcontext", this);

//create a new method below

void App::makecall(QString number){
  bb::system::phone::Phone phone;
	phone.initiateCall(number);
}

app.hpp

//add this line 
public: 
Q_INVOKABLE void makecall(QString number);

yourqml.qml

Button{
  text: "Make call"
  onClicked: {
    //replace the number with whatever number you're calling
    appcontext.makeCall("4151231234");
    // ^         ^           ^ ---------------------------------- this is the argument from the method its QString.
    // -         - This is the method name in your cpp file
    // -
    // - This is the qml.setContextProperty name
  }
}