STUN TURN Server - AnyFirewall Server

The AnyFirewall Server is a carrier-grade server for NAT/Firewall discovery, and signaling and media relay based on STUN and TURN IETF drafts. Here are some of the features highlights of the AnyFirewall Server.

• The first standards-based NAT and firewall traversal server for VoIP. It incorporates STUN, TURN, supports HTTP tunneling as a fallback and supports traversal of media and signaling including voice, video, IM and file-transfer.
   

• Provides scalable firewall traversal for large deployments by completing most calls use peer-to-peer media transport, using load balancing based on DNS SRV lookup and supporting more than 10,000 concurrent calls per CPU.
   

• Interoperable with 3rd party clients and end-points, and SIP servers from Cisco, Huawei, Nortel, Tekelec and Ubiquity.
   

• Supports wiretapping of calls by forcing relay usage for certain users (for CALEA requirements).
   

• Ready for deployment in IMS infrastructure (stand-alone server or integrated into CSCF).
   

• Runs on standard Linux systems (Standard PC or carrier-grade servers).
   

• Easy to setup using either text-based configuration; interactive command line interface; or web-based provisioning, monitoring, and usage statistics.

Figure 7 shows how this solution is deployed in an operator’s network to achieve 100% call completion. AFE and the AnyFirewall Server, together, provide a comprehensive solution meeting all the requirements for solving the NAT/Firewall Traversal problem, as discussed in Section ‎2.2.