Enabling End-to-end IP Visual Communication by Securely Traversing Firewalls and NATs with TANDBERG Expressway

TANDBERG's Expressway is the right solution for secure firewall and network address translation traversal. While there are a few solutions available, many are expensive, not secure, not available everywhere, restricting of feature sets, not ISP-friendly and not scalable.This paper identifies alternative solutions and compares them to the TANDBERG Expressway solution for firewall traversal.