Back in 2005, eBay bought Skype from Joltid. The 2.6 billion dollar price tag did not include the "Global Index P2P software " that Skype is based on. Joltid is trying to cancel the license that Skype uses for this technology. If this happens, the Skype service will be shut down permanently.
Skype is the largest internet telephony software worldwide - as well as the worlds largest international voice carrier. The 2.6 billion dollar sale did not include Joltid's core piece of P2P code called "Global Index". Global Index is the P2P protocol that Skype uses as it's core communication technology.