Geoff Manning wrote:
Skype uses wideband-ilbc.



I don't think thats right. I think it just uses iLBC over it's own
proprietary Voip protocol.
http://www.skype.com/help/faq/technical.html
How much bandwidth does Skype use while I'm in a call?
    Skype automatically selects the best codec depending on the connection
between yourself and the person you are calling. On average, Skype uses
between 3-16 kilobytes/sec depending on bandwidth available for other party,
network conditions in between, callers CPU performance, etc.

I don't think that's correct.

I don't have the link to the Columbia paper where they tried (with only mixed success) to figure out what all nefarious stuff Skype does (hijacking port 80 being the most pernicious) but I'm pretty sure they have figured out that if possible, it will use the (proprietary) wideband version of iLBC.

B.
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