Re: GNOME Chat and the future of instant messaging in gnome

[Daniel Pocock <daniel pocock pro>]

On 12/11/15 22:56, Hugo Alejandro wrote:
>     > SIP:  ReSIProcate is a recent project that enhances SIP support and plans to be used with Telepathy:
>     > https://www.resiprocate.org/Telepathy_Connection_Manager
>
>     This actually offers an opportunity to leap-frog many of the other
>     clients.  There are two parts to this:
>
>     a) get reSIProcate working with Telepathy: this brings the benefit of
>     having a well-maintained SIP stack, with comprehensive support for
>     things like IPv6 and TLS (other SIP stacks don't cover those very well)
>
>     b) adapting reSIProcate itself to use libjingle as the media stack.
>     This will let it inter-operate with WebRTC, e.g. anybody in a browser
>     will be able to call a GNOME desktop user.
>
>     The combination of these things will make it work reliably in many more
>     situations and make a very, very compelling solution.  E.g. the TLS
>     support helps get SIP through NAT and the WebRTC media stack has many
>     ways to get the audio and video through NAT.
>
>     Hundreds of millions of people have already updated their browsers to
>     versions that support WebRTC, being able to interact with them directly
>     from GNOME would be amazing.
>
>
> SIP seems to be a good alternative replacement for Skype.
>
> ReSIProcate has a similar to OTR for secure conversations?

OTR can be done over SIP, there are other clients like Jitsi doing it.

> Is it possible video calls in HD quality?

SIP itself doesn't really know or care what type of media or quality is
selected.

The current telepathy-resiprocate project uses the sipXtapi media stack
and only enables voice.  Changing to the libjingle media stack and using
it for video support would give the same video codecs supported in
WebRTC, including WebM for HD quality.  This would interact with
browsers directly without requiring any server to transform the media
streams.