S.C. Code Ann. § 58-9-2200
As used in this article:
(2) "Retail telecommunications service" includes telecommunications services as defined in item (1) of this section but shall not include:
(a) telecommunications services which are used as a component part of a telecommunications service, are integrated into a telecommunications service, or are otherwise resold by another provider to the ultimate retail purchaser who originates or terminates the end-to-end communication including, but not limited to, the following: