For Customers with pre-1998 SCAs, the following applies:

For any Customer executing a Special Customer Arrangement (SCA) before January 1, 1998, which subsequently became effective and either: (a) expressly forecloses any increase in CAC charges, or (b) contains a provision that limits by capping any increase in CAC charges, CAC charges will not apply during: (i) the remainder of the original term of service, so long as the rates and charges, including regulations that affect rates and charges, for service are not amended; and, (ii) any optional term of service following the original term of service which the SCA permits the customer to invoke by unilateral action, so long as the rates and charges, including regulations that affect rates and charges for service are not amended. Otherwise, CAC charges will apply at the beginning of any new SCA term of service, including any month‑to‑month term of service, following the expiration of any original or optional service term.

In addition, if an SCA is amended to add a service (with service features) not being furnished under the SCA, CAC charges will not apply to the amended SCA so long as the requirements set forth in (i) and (ii), immediately above, continue to be met.   Otherwise, CAC charges will apply at the beginning of any new SCA term of service, including any month‑to‑month term of service, following the expiration of any original or optional service term, or the first monthly billing period following the amendment of the SCA to add new service.  If the service added is Long Distance Voice Services, including Local Network Connection, and that service is being substituted for MCI 800 Service, Option B, Option C and/or networkMCI One; and if the Customer subscribes to new, non-resold, exchange service provided by an affiliate of the Company, CAC charges will not apply if the Customer pays charges for the substituted service(s) that equal or exceed the charges for the service substituted for, after application of all discounts or credits, and independent of any new Long Distance Voice Services or Long Distance Voice Services features to which the Customer subscribes.