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[liberationtech] Ostel: encrypted phone calls

Nathan of Guardian nathan at
Fri Feb 21 11:48:04 PST 2014

On 02/20/2014 04:46 PM, Nick wrote:
> Quoth Nathan of Guardian: 
>> > However, the Android version has excellent video support, that works
>> > through ZRTP encryption as well (though it is using a variable bit
>> > rate codec, which can reduce the effectiveness of the encryption).
> Since your post to this list I've started using ostel with Jitsi, 
> and it's working very well too. The video never seems to be 
> reliable, though (this is Windows <-> Linux). Is that likely to be a 
> Jitsi thing, or a ostel thing? Or just a speed of some of the
> computers thing (some are slowish, but video works fine on them all 
> with Skype).

I use encrypted video calls via Ostel with Jitsi on a fairly regular
basis. Here is a talk I gave remotely in Barcelona (from Boston) through
this system:

You may want to play with adjusting the bitrate and codecs in Jitsi.

> I'd assumed it was inevitable, but if an Android client can do good 
> video, then presumably laptops ought to manage it too.

Yes, it is true. Linphone on Android does especially well with video,
much better than other apps like CSipSimple for example.

Best, and thanks for the feedback!


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