Group: Skype Replacement

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Revision as of 23:56, 25 May 2012 by Agajan (talk | contribs) (added my experience with Empathy)
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Skype Replacement is an item on the FSF's High Priority Projects list.

Protocol, not client

We need to make the discussion about protocols, not clients, (think how people say "send me an email" rather than "send me a Hotmail").

The primary functionality of Skype we aim to replace is real-time:

  • voice calls
  • video calls
  • text chat

Anywhere over the internet (or beyond), with as many people per conversation, logging, etc. whatever other features (clarify this section as necessary).

The free protocols currently available to do this are.

Voice Video Text Notes
SIP Yes Yes? Yes sessions?
XMPP/Jingle Yes Yes Yes? presence?
Mumble Yes No? Yes?
WebRTC

Central Registry?

Apart from technical problems with free Skype replacements, there is a "network effect" problem preventing free protocols (and clients) becoming popular. This might be solved by ...?


Free clients

Lists exist already:

Do we need more info? If so it can go here.

SIP? XMPP/Jingle? Mumble? Active development? Platforms License Notes
Jitsi Yes Yes No Yes? Java LGPL
Ekiga Yes No? No No? GNU, Windows XP ?
Empathy Yes Yes No No? GNU GPL GNOME default
Psi
Yate
Mumble No No Yes
Pidgin
Twinkle Yes No? No
Asterisk
sipX

Personal experiences

Ekiga

  • I have used Ekiga in the past and had good luck with it, but only with other Ekiga users on GNU/Linux -- Mattl 15:47, 14 May 2012 (EDT)
  • Ekiga used to work fine for me on the local network, but failed to connect to another user behind NAT firewall. It does not support UPnP mechanism provided by many modern routers and used by almost every torrent-client and by Skype as well. -- v_2e 05:49, 24 May 2012 (EDT)

Jitsi

  • Successfully used to three-way audio-video chat with a pair of Mac users. H.264 only, but VP8 support soon! -- Mattl 15:47, 14 May 2012 (EDT)

Empathy

  • I tried to use Empathy for voice calls in Fedora 16/GNOME 3.2 and it didn't work well. There were issues with connection speed and echo cancellation. I'm looking forward to trying Fedora 17/GNOME 3.4 next week to see if there is improvement. -- agajan 23:53, 25 May 2012 (EDT)