Microsoft is in talks to buy internet phone service Skype, the Wall Street Journal has reported.

据华尔街报报道，微软欲收购Skype

According to the paper, the deal could be worth as much as $8.5bn (£5.2bn), which would make it Microsoft's largest acquisition.

Both Microsoft and Skype have declined to comment on the story.

Luxembourg-based（总部位于卢森堡的） Skype has 663 million global users. In August last year it announced plans for a share flotation, but this was subsequently put on hold.

Internet auction¹ house eBay bought Skype for $2.6bn in 2006, before selling 70% of it in 2009 for $2bn.

Skype is now majority-owned by a group of investors², led by private equity³ firms Silver Lake and Andreessen Horowitz.