Aug 11 (Reuters) - Telstra Corporation Ltd TLS.AX :
* Telstra FY 2016 results, announces $1.5 billion buy backs TLS.AX
* Confirmed it would invest an extra $3 billion over next three years in networks of the future and digitisation
* "Following network disruptions in H2 of FY 2016, we continue to implement recommendations from our core network and it system review"
* Buy-backs are expected to be funded from telstra's surplus cash and accumulated profits
* Source text for Eikon ID:nASX5Srk4J