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 ...

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 ...

About the only thing that didn’t go smoothly was using phones with NAT-based IP addresses on the other side of a SIP firewall. This may have been a configuration issue with the Ingate Firewall 1600 we ...

We didn’t just take a sip. We took a good long drink of SIP technology in this round of iLabs testing. We gathered more than 50 devices from five SIP server vendors and 13 SIP endpoint vendors to ...

For all the technology behind Voice over IP (VoIP), you'd expect that it would work on every network, but this unfortunately isn't the case. Network Address Translation (NAT) is a common practice used ...

Ingate Systems has upgraded its portfolio with enhancements to its SIParator/Firewall hardware and software line of Enterprise Session Border Controllers (E-SBCs). These updates are designed to offer ...