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.
