The latest version of Ingate Systems’ Firewall 1600 improves on the Firewall 1400, which we reviewed last year. The result is a SIP-aware VoIP firewall suitable for all but the largest enterprises.

The latest version of Ingate Systems” Firewall 1600 improves on the Firewall 1400, which we reviewed last year. The result is a SIP-aware VOIP firewall suitable for all but the largest enterprises.

As Internet Protocol communications moves into the business arena, many more corporations and organizations are adopting IP-based voice and video for internal and external use. In recent years the ...

So our phone system people are trying to setup a SIP trunk on our Mitel 3300 unit. I open up firewall ports and setup 1:1 NAT for the PBX's IP, everything looks like it should be OK. They are telling ...

VoIP (Voice over IP) represents an easily proven, cost-saving technology that many beleaguered IT executives are eager to exploit. Implementation, however, throws up hurdles, not the least of which is ...

Lowell, MA, June 24, 2020 (GLOBE NEWSWIRE) -- NetNumber today announced comprehensive SIP security enhancements to its award-winning multi-protocol signaling firewall. This follows growing concerns ...

Cisco Systems has been trying to reproduce a PIX firewall security hole outlined by a researcher during the Black Hat USA 2006 conference in Las Vegas earlier this month. So far, the company has been ...

The question of session border controller (SBC) or firewall is one that many IT managers find annoying. Why? First and foremost, isn't the new era of communications supposed to be better, faster, ...

Because of VoIP, firewalls may never be the same. New research shows that organizations underestimate the demands that enterprise VoIP security places on existing firewalls, and that those demands are ...

The firewall has 5060 and 10000-20000 open to the SIP provider (voip.ms), and a static NAT to the FreePBX server but we are getting some set of calls with no audio on either end. Anyone have any ideas ...