Conference Service conference.example.com http://www.example.com/ 00.000000 -0.000000 An example conference service vcard including photo. image/png iVBORw0KGgoAAAANSUhEUgAAAAgAAAAICAIAAABLbSncAAAAAXNSR0IArs4c 6QAAAARnQU1BAACxjwv8YQUAAAAgY0hSTQAAeiYAAICEAAD6AAAAgOgAAHUw AADqYAAAOpgAABdwnLpRPAAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAChJREFU GFdjbGhoYICB+noEmwEoAQf//zPAERkSyNqRjUUYClRBmQQA1bhkyPOCkDgA AAAASUVORK5CYII=