6.2.1 The equipment should be capable of internally
storing at least 200 message identifications for each receiver provided.
6.2.2 After between 60 h and 72 h, a message identification
should automatically be erased from the store. If the number of received
message identifications exceeds the capacity of the store, the oldest
message identification should be erased.
6.2.3 Only message identifications which have
been satisfactorily received should be stored; a message is satisfactorily
received if the error rate is below 4%.