eBay bought Skype in 2005 for $2.6bn but now plans to spin off the business via an initial public offering, and financial analysts value the company at $2bn.
However, eBay chief executive John Donahoe told Reuters this figures was "too low".
"I think it's worth a lot and I think the numbers speak for themselves. There are not many properties that have that kind of growth," he added referencing the fact that Skype now has 400 million users.
See also: eBay to sell off Skype via IPO