Dynamic permit/deny ue/realm list update and cost optimization based on network attach failure incidents

An apparatus comprising:

• a network processor unit to communicate with one or more networks;
• and
• a processor coupled to the network processor unit and configured to perform:
• upon receiving, from access networks, attach requests initiated by user equipments (UEs) when the UEs attempt to connect to the access networks, computing a baseline attach failure rate for fulfilling the attach requests;
• initially setting a billing type for a UE of a subscriber to usage based billing;
• upon receiving, from the access networks, attach requests initiated by the UE when the UE attempts to connect to the access networks, computing an individual attach failure rate for fulfilling the attach requests from the UE;
• determining whether the individual attach failure rate for the UE exceeds the baseline attach failure rate;
• and
• when the individual attach failure rate exceeds the baseline attach failure rate, automatically switching the billing type for the UE to flat rate billing.

A non-transitory computer readable medium encoded with instructions that, when executed by a processor configured to communicate with one or more networks, cause the processor to perform:

• upon receiving, from access networks, attach requests initiated by user equipments (UEs) when the UEs attempt to connect to the access networks, computing a baseline attach failure rate for fulfilling the attach requests;
• initially setting a billing type for a UE of a subscriber to usage based billing;
• upon receiving, from the access networks, attach requests initiated by the UE when the UE attempts to connect to the access networks, computing an individual attach failure rate for fulfilling the attach requests from the UE;
• determining whether the individual attach failure rate for the UE exceeds the baseline attach failure rate;
• and
• when the individual attach failure rate exceeds the baseline attach failure rate, automatically switching the billing type for the UE to flat rate billing.