SUBSCRIPTION_TIME_TO_LIVE

Upon ArrivalSequenceConsumer unavailability the ArrivalSequenceProvider shall keep the subscription active within 'SUBSCRIPTION_TIME_TO_LIVE'. The ArrivialSequenceProvider shall provide a value for the "SUBSCRIPTION_TIME_TO_LIVE" parameter. This parameter is defined as the time within which the ArrivalSequenceProvider shall retain the subscription even if the ArrivalSequenceConsumer get disconnected.