17 Jan
2006
17 Jan
'06
11:18 p.m.
On 17-Jan-2006, at 23:57, Truman Boyes wrote:
I have used SIP phones in China and I can tell you that some of the firewalls are a lot more advanced than just blocking applications. I was able to place some types of calls via my USA DDI, while others were redirected to a local chinese gateway. Essentially that means that ALGs were inspecting the SIP invite messages ... quite interesting ...
Presumably this is the difference between living in a region where the authorities are open about intercepting communications, in contrast to other places where communications are routinely intercepted in secret? Joe