Consistently while trying out some Jabber voip software (since skype has proven itself to be quite poopy in 64 bit) with my not yet migrated to Linux friend(mint 10/ubuntu 10.10 had installation problems), when we noticed that no connection was being made between the clients (IM/fileshare worked alright) With Each client ( Pidgin, Empathy, and Jitsi on my end/ just jitsi on the other, will test with Spark later) each time bringing up "ICE error" or "ICE failure" on either end. Is this a problem with Jitsi, or does XMPP require port forwarding of some type, like SIP?


Slightly unrelated question: How does skype work without port forwarding/ firewall configuration and why hasn't this method been implemented into some other methods of PC based VOIP