Cisco SIP based phones have SIP extensions that use the SIP protocol for Cisco proprietary operations like registering a Cisco SIP phone by MAC Address. This blog will take a high level look at ...

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 ...

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 ...

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 ...

While most open-source projects are applications and utilities intended for single users, we did something different. We created an infrastructure project: a Voice-over-IP (VoIP) phone system that ...

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.

Siemens this week is launching a high-end enterprise IP PBX that can host more than 100,000 IP phones from a single data center. Siemens this week is launching a high-end enterprise IP PBX that can ...