Dec 5 (Reuters) - Optus:
* Optus- announced a three-year, $40 million contract extension with specialist security provider suretek
* Optus - deal for delivery of 1345 securecall services
* Optus- extended contract will see suretek's enterprise-class alarm service delivered via optus network through to end of 2020 Source text for Eikon: ID:nSNZ9Ypd2y Further company coverage: STEL.SI