最近看到很多人用这个stun: stun.xten.com,最好换一个。
据这个帖子：
http://www.dslreports.com/forum/r23088225-Why-does-only-Callcentric-work-well-with-Sipsorcery
“
There's currently no STUN server running at either stunserver.org or stun.xten.com. However, there are plenty of other sites running STUN servers. Here's a short list of servers that are currently up and running:
stun.voipbuster.com
stun01.sipphone.com
stun.ekiga.net
stun.ideasip.com
stun.rnktel.com
stun.sipgate.net
stun.sipgate.net:10000
stun01.sipphone.com
stun.softjoys.com
numb.viagenie.ca
stun.voxalot.com
“