Registry::getCallWithId

static function getCallWithId(int $id): ?Call
{
	if(static::$calls[$id])
		return static::$calls[$id];

	$row = CallTable::getRowById($id);
	if(!$row)
		return null;

	static::$calls[$id] = CallFactory::createWithArray($row['PROVIDER'], $row);
	return static::$calls[$id];
}