Optus 4G vow

Optus says its 4G mobile network will reach 70% of the Australian population by mid-2014.

The article states Optus has upgraded 4,000 3G sites to 4G.

Optus revealed it upgraded sites in five capital cities and in regional centres including Coffs Harbour, the Gold Coast and Byron Bay.

Yes — Optus plans to make its 4G network suitable for customers with dual-band 4G mobile devices, according to the article.

The article reports that Optus has upgraded 4,000 3G sites to 4G, indicating those upgrades have been completed or implemented.

No — the article mentions upgrades in five capital cities but does not specify which capital cities they are.

Not immediately — the article states Optus aims to reach 70% of the Australian population by mid-2014, so some areas will remain outside that coverage until further rollout.

No — the article focuses on network upgrades, coverage targets and device compatibility but does not provide financial or performance details.