For years, carriers and equipment manufacturers loved to quibble over the best signaling scheme for their voice-over-IP (VoIP) gateway architectures. During the debate, industry members pitted the ...

Earlier this month, the National Infrastructure Security Coordination Centre in the U.K. advised that implementations of the H.323 protocol are vulnerable to denial-of-service attacks and could even ...

So far in this series I have described two telephony protocols (SIP and MGCP) that feature prominently on the CCIE Voice and CCVP exam blueprints. In this blog entry, I am going to describe another, H ...

Layer 7 switching isn’t just for Web servers anymore. Two companies are working to integrate the technology into voice-over-IP networks for corporations and service providers. The ability to route ...

COLORADO SPRINGS, Colo. — Radvision's technology business unit, responsible for licensing OEM versions of H.323 conferencing protocol stacks, has begun shipping integrated software tool kits and ...

Microsoft is still investigating which of its products are vulnerable to a bug in its implementation of the H.323 Voice over IP (VoIP) standard. While the company has patched its Internet Security and ...

Microsoft is still investigating which of its products are vulnerable to a bug in its implementation of the H.323 voice over IP (VoIP) standard. While the company has patched its Internet Security and ...

A lack of interoperability between different systems has been one of the barriers preventing videoconferencing and telepresence from being widely adopted in the enterprise. There’s nothing worse that ...

Longtime users of Ubuntu Linux may already be familiar with open source Ekiga, which used to be the default Voice-over-Internet Protocol (VoIP) client in that popular Linux distribution, but late last ...