Session Initiation Protocol (SIP) will allow true interoperability, eventually enabling every IP-based device and application to communicate seamlessly with one another. This guide discusses some of ...

What's VoIP's Big Security Problem? SIP Session Initiation Protocol (SIP) is a must for voice over IP (VoIP) communication. But by itself, SIP is insecure and easily hacked. Here's what you need to ...

In our last VoIP installment, we looked at the main reasons why SIP has become a widely adopted protocol, but we left details of the protocol’s inner workings fairly vague. This article will drill ...

Testing your VoIP security system against all the threats that exist on the network can be a full time job. This guide documents how a VoIP system can be tested and suggest some of the available tools ...

The main challenge: Even if an enterprise wants to interconnect different IPT islands, there is no real incentive for two different vendors to interoperate. VoIP/IPT systems have proliferated to the ...

Broadcasting over IP is rapidly becoming the paradigm by which broadcasters are planning future broadcast network infrastructures. Within the diverse range of broadcast IP devices coming onto the ...

Update: We're in the last throes of winter break 2019, which means most Ars' home office phones can stay dormant for a few more days. As such, we've been resurfacing a few classics from the ...

We are becoming less and less dependent on mobile networks. You can get a data signal almost everywhere that you can get a mobile signal and most of us are around WiFi most of the time anyway.

We are becoming less and less dependent on mobile networks. You can get a data signal almost everywhere that you can get a mobile signal and most of us are around WiFi most of the time anyway.