firewall traversal

PC-based SIP VoIP solutions generally have problems with firewall traversal.

In 2005, Radvision launched Pathfinder, a firewall traversal solution for IP videoconferencing.

IKEv2 combines these in one RFC as well as making improvements to support for NAT traversal and firewall traversal in general.

As a result of this research, the final TelNEURO smart NAT traversal approach is an inventive, efficient and effective firewall traversal solution.

The Firewall Traversal Feature makes it possible to put an application server in an organisation's DMZ with only port 443 (HTTPS) accessible from the outside world.

TelNEURO minimizes the possibility of an unsuccessful firewall traversal situation that will require a configuration setup from the user side, and helps TelSIP automatically configure itself within milliseconds.

The result of this acquisition was the Tandberg Expressway Firewall Traversal technology, which allows any H.323 video endpoint to place calls through any number of firewalls or NAT devices.

Nuvoiz Communicator uses Nuvoiz's patent-pending NAT and firewall traversal technology for 100% VoIP call connectivity through peer-to-peer connections as first goal, or media relay as backup.

For instance, for Session Initiation Protocol (SIP) Back-to-Back User agent (B2BUA), an ALG can allow firewall traversal with SIP.

S. Son, B. Allcock, and M. Livny, "CODO: Firewall Traversal by Cooperative On-Demand Opening," Preprint ANL/MCS-P1200-1004, October 2004.