Callto and Skype
It was not obvious to me how to do this so maybe it is not obvious to other people. But if you want to have your phone number links hooked up with Skype the syntax to use is:
<a href=”callto://+18885551212″>888-555-1212</a>
Note the +1 and the lack of dashs in the href…
And I will say it sucks that if a user doesn’t have Skype or some other useful telephony app installed that the Net Meeting wizard launches if the user is using IE. How confusing, if the app that monitors those tags isn’t installed/configured it shouldn’t try and handle them (and I know that the Microsoft PM who design it that way is going to argue that then their Net Meeting callto feature isn’t discoverable, but tough!).