AG 550022 IntroductionCredit Card ModuleThe optional Credit Card Module provides a secure interface over SSL to enable billing via acredit card for HSIA. This module also includes the Bill Mirror functionality for posting ofbilling records to multiple sources.See also:z “Secure Socket Layer (SSL)” on page 18.z “Billing Records Mirroring” on page 21.High Availability ModuleThe optional High Availability Module offers enhanced network uptime and serviceavailability when delivering high-quality Wi-Fi service by providing Fail-Over functionality.This module allows a secondary Nomadix Access Gateway to be placed in the network that cantake over if the primary device fails, ensuring Wi-Fi service remains uninterrupted.Your product license may not support this feature.Your product license may not support this feature.