Line port costs in excess of basic, analog service.

To the extent that the costs of ISDN line ports, and line ports associated with other services, exceed the costs of a line port used for basic, analog service, local exchange carriers may recover the difference through a separate monthly end-user charge. As of June 30, 2000, these rates will be capped until June 30, 2005. [65 FR 38704, June 21, 2000; 65 FR 57744, Sept. 26, 2000]