L<FS::svc_broadband> - DSL, wireless and other broadband class.
+L<FS::svc_dsl> - DSL
+
L<FS::addr_block> - Address block class
L<FS::router> - Router class
L<FS::svc_external> - Externally tracked service class.
+L<FS::svc_pbx> - PBX service class
+
+L<FS::svc_cert> - Certificate service class
+
L<FS::inventory_class> - Inventory classes
L<FS::inventory_item> - Inventory items
L<FS::pkg_svc> - Class linking package definitions (see L<FS::part_pkg>) with
service definitions (see L<FS::part_svc>)
+L<FS::qual> - Service qualification class
+
+L<FS::qual_option> - Qualification option class
+
L<FS::reg_code> - One-time registration codes
L<FS::reg_code_pkg> - Class linking registration codes (see L<FS::reg_code>) with package definitions (see L<FS::part_pkg>)
L<FS::cust_main::Billing_Realtime> - Customer real-time billing class
+L<FS::cust_main::Packages> - Customer packages class
+
L<FS::cust_location> - Customer location class
L<FS::cust_main_Mixin> - Mixin class for records that contain fields from cust_main