Try to do SIP/IAX2 to: 18.104.22.168
And do a LJ voicepost. (if you have a paid account)
The system is now outside of our network, but is using your LJ pin auth, and we're importing its recordings into LJ's network for posting to your journal.
Please report success/failure with method/OS/client/etc.
P.S. It's known to work with iaxComm on Win/Linux/Mac, but note that the iaxComm program is pretty flakey and the initial "Account settings" page is buggy, so you'll likely have to quit that screen and go back into preferences and re-add it. Username whatever ("guest" or blank), no password. Dial any number (say, "1"), then press "Dial" to connect.