In an ideal Internet all packets would be treated as equal by the Internet Service Providers (ISP) and backbone operators who transport them across cyberspace. Unfortunately, this is not always the ...

The age of voice-over-Internet-protocol (VoIP) is here, bringing together telephony and data communications to provide packetized voice and fax data streamed over low-cost Internet links. The ...

We received this question from a student at a recent Profinet One-Day Training Class. I found it particularly prescient given the latest discussions going on around Industry 4.0. The question is ...

How compatible are VoIP protocols like SIP, H.323, Skype, Vonage, etc.? Do they easily intercommunicate with each other, and if so, how? A simple comparison of the strengths and weaknesses of each ...

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 ...

Like many words in the English language, “network” and “protocol” have different meanings, depending on the context. In the context of digital communications, Merriam-Webster defines network as “a ...

Many certifications touch on voice over IP (VoIP) topics tangentially, but numerous credentials now focus a fairly substantial portion of their coverage on this subject matter. In this certification ...