Does anyone know why is it "next gen"? And how does "peer-to-peer" mean in this case?<p>The only description of sip witch with some actual content (that I could find) is here: <a href="http://www.slideshare.net/gnutelephony/harvard2010" rel="nofollow">http://www.slideshare.net/gnutelephony/harvard2010</a> However it's missing some really important points and looks like technical issues are just skipped:<p>- How do users locate each other? (looks like user@domain is "known" somehow) GNU telephony blog mentions "peer-to-peer mesh calling networks" but I can't find any actual working prototype.<p>- Why wouldn't I just use Freeswitch which can support both nat traversal and ZRTP?<p>- How do they imagine the initial connection with both sides behind the firewall if no ports are mapped? (skype can do that due to known network of hosts)<p>If they don't have some great solutions here, I'm not sure why are they writing this from scratch instead of adding those "peer-to-peer mesh calling networks" capabilities as a standardised protocol to PBXes which are used nowadays (asterisk, freeswitch, yate).
The blog post tells us a release has occurred, who wrote it, who the FSF is, what the relationship between Witch and Free Call is. However I can't for the life of me figure out what GNU SIP Witch is.