Introduction Telstra Corporation Limited known as Telstra is Australia's leading telecommunications and information services company which builds and operates telecom networks, mobile, internet access and markets voice and is headquartered in Melbourne, Victoria. The company has been trading internationally since 1993 but GM Holden Ltd. designated as Holden, is an Australian automaker which operates Australasia and is headquartered in Port Melbourne, Victoria. It is one of the only three local car manufacturers operating in one of the world's most competitive car markets. Tag lines Tag line of Telstra is 'It's how we connect' and for Holden it is 'Holden go'. Target Groups Telstra Provides services to most of the homes and businesses in