Patent ID: 6411955
Filing Date: 2002-06-25
Classification: H04M,H04Q,Y10S

Abstract:
In a communication switch implemented within a communications network, the switch having a first announcement controller coupled to a first memory having, stored therein a service announcement set, the switch also having an administration processor coupled to a database having stored therein a copy of the service announcement set, a method of restoring the first memory, the method comprising the steps of:(a) detecting a failure in service due to failure of the first memory in the switch; (b) copying the copy of the service announcement set from the database to the first memory; (c) updating the copy of the service announcement set contained in the first memory and database with updates forming an updated service announcement set in the first memory and a copy of the update service announcement set in the database; and (d) comparing the updated service announcement set in the first memory with a second service announcement set stored in a second memory coupled to the switch via a second announcement controller.