Original sentence: Telstra Corporation Limited (known as Telstra) is an Australian telecommunications and media company which builds and operates telecommunications networks and markets voice, mobile, internet access, pay television and other entertainment products and services
Edited sentence: Telstra Corporation Limited (known as Telstra) is Australia's largest and incumbent telco.Telstra builds and operates telecommunications networks and markets voice, mobile, fixed & wireless internet access, pay television and other entertainment products and services.Telstra is one of Australia's largest consumer service providers and has one of the most recognised brands in the country