web-driven VoIP Call

 
This is a bookmarklet to give quick access to your favorite VoIP service from within a webpage.
www.doddle.com.br

You can make VoIP calls directly from web page using your favorite VoIP provider.

 Note that you can pre-fill SIP settings from your provider as HTML parameters (URL) and bookmarking your contacts

You don’t have to sign with the site, indeed you just need to have a VoIP account anywhere (Provider / Community).
That could be useful as a kind of click2call solutions with your own VoIP provider.