TalkTalk is the broadband and home phone business of The Carphone Warehouse. It was launched in February, 2003 after The Carphone Warehouse acquired Opal Telecom, and with it the flexibility of its own landline network. In 2004, TalkTalk started offering free calls between all of its customers, leading to an exponential growth in business. TalkTalk customers saw the value in having all of their friends and family on the same network. Four years later, TalkTalk continues to offer the same great deal. Later that year, TalkTalk launched its broadband service, and a year later, free international calls to some of the most popular destinations including Australia and the USA. In December, 2005, TalkTalk acquired Onetel and Tele2, taking their total customer number up to 2.5 million. All of these customers got to talk to each other for free. At the same time, TalkTalk made a promise to always be cheaper than its biggest competitor, BT. The biggest breakthrough came in April 2006 with the launch of free broadband. This made a good deal even better. Since then, a million people have taken advantage of this offer. As part of their growth strategy, The Carphone Warehouse bought the UK's customer base of AOL from Time Warner. This made TalkTalk the third largest broadband provider in the UK, behind BT and Virgin Media. In 2009 Carphone Warehouse successfully acquired Tiscali (now part of TalkTalk), making them one of the largest broadband, home phone and now digital TV companies in the UK. In March 2010 TalkTalk Telecom announced a demerger that ended its partnership with Carphone Warehouse. With over four million customers it is worth about £1.1 billion after splitting from Carphone Warehouse, which now has a market value of around £620 million. The split leaves Carphone Warehouse with its 50% stake in Best Buy Europe - its joint venture with the US consumer electronics giant - and a 47.5% stake in Virgin Mobile France.