'router' => array(
        'routes' => array(
            'campaign' => array(
                'type' => 'segment',
                'options' => array(
                    'route' => '/campaign[/:id][/:action][/:response]',
                    'constraints' => array(
                        'action' => '[a-zA-Z][a-zA-Z0-9_-]*',
                        'id' => '[0-9]+',
                        'response' => '[0-9]+',
                    ),
                    'defaults' => array(
                        'controller' => 'Campaign\Controller\Index',
                        'action' => 'index',
                    ),
                ),
            ),
            'expired' => array(
                'type' => 'Literal',
                'options' => array(
                    'route' => '/expired',
                    'defaults' => array(
                        'controller' => 'Fcm\Controller\Error',
                        'action' => 'expired',
                    ),
                ),
            ),
        ),
    ),