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Since 2003, 3 has been part of Hutchison Whampoa's global group of companies - one of Australia's biggest foreign investors, and an employer of over 220,000 people in 54 countries. Website : www.three.com.au

Optus provides a comprehensive range of advanced digital satellite services including Broadcast Services, Satellite Data & Voice Services, Mobile Satellite Services & Professional Services. Website : www.optus.com.au

Telstra is the only communications company in Australia that can provide customers with a truly integrated telecommunications experience across fixed line, mobiles, broadband (BigPond®), information, transaction and search (Sensis®) and pay TV (FOXTEL). Website : www.telstra.com.au

Vodafone Group was established in the UK in 1983, and has equity interests in 26 countries and partner networks in a further 13 countries - leaving an unmatched network footprint that has access to a total customer base of almost 155 million proportionate customers. Vodafone Group Plc has played a significant role in Vodafone Australia's business since its inception as well as in the management and development of Vodafone New Zealand and Vodafone Fiji. Website : www.vodafone.com.au