The Vonage forum thread was started by a U.S. Air Force serviceman claiming that all of a sudden his Vonage service stopped working. Apparently, some ISPs have been blocking for a few months with others now joining the blocking VoIP parade.
The kicker is that it's the incumbent telcos and Korean-based VoIP service providers that have lobbied to block foreign-based VoIP service providers. As I wrote previously, the South Korean government, with the backing of major South Korean ISPs have pushed for the ban because of the unlimited flat-rate calling plans offered by American competitors. Gee, that's just great - you can't compete on price, so you simply block your foreign competitors. Where's the WTO (World Trade Organization) when you need em'?
I said it before and I'll say it again - perhaps you (South Korea) have forgotten about the blood, sweat, and tears shed by Americans in the Korean war?
Maybe this picture will refresh your memory...

"Bitter cold, Bitter fight" a weary U.S. Marine in Korea 1950







