Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online.Singapore Telecommunications Limited (SGX: T48, ASX: SGT), commonly abbreviated as SingTel, is a telecommunications company, with a combined mobile subscriber base of 249.4 million customers from its own operations and regional associates at the end of March 2009 . SingTel provides ISP (SingNet), IPTV (mio TV), mobile phone and fixed line telephony services. SingTel has expanded aggressively outside its home market and owns shares in many regional operators, including 100% of the second largest Australian telco, Optus, which was acquired in 2000 from Cable & Wireless and other shareholders of Optus, and Bharti Airtel, the largest telco in India.