Korea + 1 million

Found on Google:

Telecoms Korea News Service
"Subscribers to internet telephony service Skype passed one million in one year and five months after the service was launched in Korea by Auction."

I wanted to register on their website to see what definition they have for Skype "subscribers", but on their registration page it says: "You may not share the content in any format whatever, including posting on any public or private Web site ..." therefore i stopped registering.

But what do they mean by subscribers:

• Skype User ID's?
• SkypeOut customers?
• Regular and active users?

I would like to know!