I'm going through the Whitepaper by RADVISION on NAT/Firewall traversal for H.323 endpoints. It is suggested there to use ITU-T H.460.18,17 and 19.
460.17 is very clear way for NAT traversal, but I'm not so clear about the 460.18. Both present a clear solution for Firewall, but how is 460.18 a solution for NAT traversal?
Regards,