While IP PBX vendors duke it out for market share in the converged LAN/WAN arena, a recent analyst report warns not to count out a certain software vendor from Redmond. A report from IDC identifies ...

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 ...

Voice over IP has reached the point where it’s good enough to be taken seriously in the enterprise. The poor voice quality and dropped calls are things of the past, and the current technology delivers ...

Even many IT professionals haven't heard of the Session Initiation Protocol (SIP), so it's almost certain your users haven't. However, unless you're using an entirely proprietary Voice-over-IP (VoIP) ...

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 ...

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 ...

Microsoft on Tuesday opened a private beta of its new enterprise voice communications server to 2,500 IT professionals. Microsoft Office Communications Server 2007 allows companies to integrate Voice ...

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 ...