Why Most Buyers Can Ignore the Question of SIP vs VoIP Your email has been sent Discover the differences between SIP vs VoIP and why those differences don’t really matter that much during the buying ...

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 ...

VoIP phones offer the familiar look of a conventional desk phone with similar functionality, but aren’t as plug-and-go. Like so much networking kit, setting up a VoIP phone can be a very frustrating ...

Session initiation protocol (SIP)-based voice-over-IP (VoIP) designs certainly provide some interesting benefits over today's Class 5 switching systems. SIP enables capabilities like presence, instant ...

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 ...

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 ...

The resurgence of interest in VoIP to provide telephone services worldwide is often credited to the use of session initiation protocol (SIP) for signaling. Both residential and enterprise VoIP ...

Our colleague Joe McGarvey, principal analyst for IP services infrastructure at Current Analysis, recently wrote an advisory report about the VoIP application server market we'd like to recommend to ...