「TELECOMMUNICATIONS BUSINESS ACT」 business operator or provide such services for a third party's communications: Provided, That the same shall not apply in the following cases: 1. Where it is required to ensure the prevention and rescue from disaster, traffic and communications, and the supply of electricity, and to maintain order in a national emergency situation; 2. Where a person renders ancillary telecommunications services to clients while operating his or her business other than the telecommunications business; 3. Where a person is allowed to use telecommunications services on a trial basis for the purpose of developing and marketing telecommunications equipment, such as terminal devices, with which telecommunications services can be used; 4. Where any user allows any third party to use telecommunications services to the extent that the latter does not use them repeatedly; 5. Where it is necessary for the public interest or where the use of telecommunications services does not impede the business operations by telecommunications business, as prescribed by Presidential Decree. Article 31 (Use of Transmission and Line Equipment) (1) Any composite cable TV business operator, transmission network business operator, or relay cable broadcasting business operator under the Broadcasting Act may permit facilities-based telecommunications business operators to use his or her own transmission and line equipment or cable broadcasting equipment in a manner prescribed by Presidential Decree. (2) Where a facilities-based telecommunications business operator intends to provide value-added telecommunications services by using transmission and line equipment or cable broadcasting equipment owned by any composite cable TV business operator, transmission network business operator, or relay cable broadcasting business operator under the Broadcasting Act, he or she shall report thereon to the Minister of Science and ICT pursuant to Article 22 (1). <Amended on Mar. 23, 2013; Jul. 26, 2017> (3) Articles 35 through 37, and 39 through 55 shall apply mutatis mutandis to permission to use transmission and line equipment or cable broadcasting equipment under paragraph (1). (4) Article 28 (2) through (7) of the Framework Act on Broadcasting Communications Development shall apply mutatis mutandis to the provision of services under paragraph (2). 법제처 34 국가법령정보센 터