GTC Telecom Corp. provides various telecommunication services, Internet-related services, and business process outsourcing services primarily to small and medium sized businesses and residential customers in the United States. Its telecommunication services include long distance telephone services, such as outbound service, inbound toll-free 800 service, and calling card service; and wireless telephone service under the name GTC Wireless. The company s Internet-related services include dial-up access service to both consumer and business users. GTC Telecom s business process outsourcing services consist of inbound and outbound call center management solutions, IT management solutions, and business operations management solutions. The company was founded in 1994 and is headquartered in Costa Mesa, California. As of December 17, 2007, GTC Telecom Corp. is a subsidiary of Atrium Wireless Partners, LLC.