Have you tried making calls with Jitsi via a GTalk account? Jitsi
supports TCP tunnelling with the Google mechanisms so that could work.
I am afraid using port 53 would not be a viable option. First, Jitsi
would require root/Administrator privileges to bind on that port and
even if it gets it, it is not very likely the fronting NAT would
attribute the same port.
If you don't want to use a VPN as suggested by others, your best bet may
be the installation of a SIP server such as Asterisk on the public
internet and making that server listen on port 53. This would still kill
RTCP but you should be able to talk to your contacts.
На 03.11.11 13:37, Rieker Flaik написа:
I want to do voip with jitsi. The other person has jitsi too. But I'm
sitting behind a pretty strict NAT/Firewall.
Port 80, 443 and IMAP are allowed and only TCP. But port 53 is allowed
for UDP. I don't know if port 53 is allowed for TCP too, but I doubt
So is it somehow possible to configure jitsi to only user port 53 for
its UDP traffic and e.g. port 443 for TCP traffic?
Thanks in advance,
Emil Ivov, Ph.D. 67000 Strasbourg,
Project Lead France
firstname.lastname@example.org PHONE: +126.96.36.199.43.30
http://jitsi.org FAX: +188.8.131.52.47.31