define serviceescalation{
   host_name               alfred
   service_description     *
   first_notification      1
   last_notification       3
   contact_groups          admins, notify-by-sms
   notification_interval   5
}
define serviceescalation{
   host_name               alfred
   service_description     *
   first_notification      4
   last_notification       0
   contact_groups          admins, notify-by-call
   notification_interval   15
}