Fusebox supports a Keep Alive (or Heartbeat) message – Transaction Type 73. Integrated POS/PMS or Web based applications can use this transaction type to validate their connectivity to the Fusebox Gateway and its availability to accept transactions.
Applications supporting Keep Alive messages will send them no more often than every 5 minutes.
1003,0000<–Gateway Response Code–>
1004,ACKNOWLEDGED<–Host Response Message–>
1010,COMPLETE<–Gateway Response Message–>