A SIP trunk is the digital version of an analog phone line. Learn how you can upgrade to a unified digital phone system for ...

Most people communicating on the internet are using SIP calling. Here’s how to make free SIP calls — and when you shouldn’t. Session Initiation Protocol (SIP) allows one device to find another and ...

Today, we’d like to talk about how Session Initiation Protocol can bring the call center a greater variety of ways to communicate. SIP, as readers may recall, has three important advantages over H.323 ...

Many firewalls still in service lack SIP traversal capabilities and then are they even stateful inspecting? Other concerns include the fact that some SIP providers now call for Deep Packet Inspection ...

We know SIP can change telephony but are you willing to change with it? For several years we've heard that SIP as a powerful tool can change what we can do with business telephony. We know SIP can ...

With three years spent researching, comparing, and testing software products, Tyler Webb is an expert on all things telecommunications. With work featured on GetVoIP.com, he's written over 150 ...

An interesting discussion on the Broadband forum of DSLReports.com documents how to reach a Google Voice number via a SIP phone. “this is a direct connection, without going through Gizmo or any other ...

Session Initiation Protocol (SIP), with its promise of serving as a single global signaling standard, has mushroomed in importance for networking in the past year. But it may be years from adoption ...

A voice over IP (VoIP) service can improve your call quality and save you money compared with a traditional landline. These are the top VoIP services we've tested for home phone needs. I'm a ...

"Voice-over-IP has become more of a mainstream product," said Dennis Gorecki, marketing manager at Data Comm Networking, a solution provider in Burr Ridge, Ill., that is expecting to grow its IP ...