Andreas Enge said:

> I am not quite sure what google hangout is, but it sounds a lot like
> a proprietary software as a service. So I do not think that would be
> in line with the gnu philosophy...

You got it right. Other options are available for screen sharing that
are free software. There are also lots of audio things for VoIP.
Mumble [0] is one such thing. It's free, works very well, and uses the
unencumbered Opus audio codec - the successor to Vorbis. :)

[0] http://mumble.info

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