PeriodCompareGraph::getCallTypeTitleById

protected function getCallTypeTitleById($id): string
{
	switch ($id)
	{
		case CallType::INCOMING:
			return Loc::getMessage('TELEPHONY_REPORT_GRAPH_PERIOD_COMPARE_INCOMING');
		case CallType::OUTGOING:
			return Loc::getMessage('TELEPHONY_REPORT_GRAPH_PERIOD_COMPARE_OUTGOING');
		case CallType::MISSED:
			return Loc::getMessage('TELEPHONY_REPORT_GRAPH_PERIOD_COMPARE_MISSED');
		case CallType::CALLBACK:
			return Loc::getMessage('TELEPHONY_REPORT_GRAPH_PERIOD_COMPARE_CALLBACK');
		default:
			return Loc::getMessage('TELEPHONY_REPORT_GRAPH_PERIOD_COMPARE_ALL_CALLS');
	}
}