public int getMinimum(final String callName) {
		int min = Integer.MAX_VALUE;
		final List<CallData> callDataList = getCallData(callName);
		for (final CallData callDataEntry : callDataList) {
			if (callDataEntry.getDuration() < min) {
				min = callDataEntry.getDuration();
			}
		}
		return min;
	}