ISP/VPN's to China?

I have a client in the US looking to connect up an office in China and I'm wondering what type of connections are avilable and wether IPSEC VPNs can be established through the 'Great firewall of China'. I talked to a China Telcom rep in the US that says that the network congestion even in China makes VPN's difficult. From their website, I see that the majority of the country is using xDSL, or 2MB dedicated lines. Can anyone shed any light on this topic? Thanks! chris@chrisserafin.com