Comparing Apples to Oranges
I sent this to the Mods team, hopefully the edit the article, but in the event they don't, maybe some people will still be reading the 3rd page
Hello,
I see a bit of an outcry on the skype page about the fees, especially as it pertains to other programs offering similar features for free. There are also some who question the hourly limits in place for said service.
I think it only fair that you clarify the story to make note of the fact that what skype is doing isn't directly comparable to iChat, etc.
When you make a multi party video chat on one of the free services, your computer establishes a separate 1:1 vide chat for each one. That means a video chat in iChat with 4 participants requires 4 times the bandwidth as a simple 1:1 call. While this does lead to a higher quality expierience (assuming all party's have better than 2Mb of upload free to use), most people simply don't have the bandwidth and are stuck with truly attrocious quality on each stream.
Skype isn't working like this, rather they are using an MCU technology similar to oovoo (sp?) or sightspeed for buisness. This allows each computer in the conference to directly connect to a server which stiches all the video together and requires only 1 stream in and out of each computer. It also tolerates NAT and other connection issues far better than your multiparty conference relaying on a 4:4 connection to be fully established to work.
Those mcu servers, if purchased, cost between 1000 and 3000 per simultaneous user. That means if skype was anticipating 10'000 users active at any one time, they would have to purchase a system with a value of at least 10'000'000, potentially far more. I understand that it is unlikely they bought a commercial solution. (although I wouldn't rule it out) but even if they built it completely internally, they would still have many millions invested with many more coming due for bandwidth and maintenance of the codebase and physical infastruture.
I have nothing to do with skype, but I buy these services often and this one is neither overpriced, nor are the service time limits anything approaching draconian.
Thanks,
Karl P