Brien M. Posey

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In the first part of this article series, I talked about the basic functionality of SIP, and how SIP fits in with some other... More...

Mar 31, 2008
The Session Initiation Protocol (SIP) is the primary protocol that's used by most VoIP and unified communications (UC... More...
Mar 17, 2008

Over the last year or two, unified communications has become more and more common. As with any other IT technology, the... More...

Mar 3, 2008
It's been said that unified communications is the next big thing in networking, but presence may be the next big thing in... More...
Jan 19, 2008
Because unified communications technologies, such as VoIP, are really just beginning to go mainstream, there simply... More...
Nov 5, 2007
More and more companies are making the transition to IP-based PBX systems because they offer flexibility and cost... More...
Oct 1, 2007
Service-oriented architecture (SOA) is enabling new business process integration between voice and data networks by... More...
Mar 19, 2007

Securing Voice over IP (VoIP) traffic remains one of the biggest obstacles to its mainstream enterprise use. As a general... More...

Aug 7, 2006

I have never considered myself a developer, but I have written my share of code over the years. Even so, I always thought... More...

Expert Advice
most from hosted or managed unified communications (UC) systems? There is no limit with regards to size and industry as to which organizations and enterprises could reap the...
Oct 17, 2008
should be part of our unified communications (UC) assessment group, and how should we assess UC? Unified communication (UC)'s mission is to unify the communications of...
Oct 17, 2008
but want to make the move to unified communications (UC). Are there any special security concerns to be aware of? When I was first asked to narrow down the top issues in...
Oct 17, 2008
I know unified communications (UC) is the hot topic of the moment, but is there any indication of "what's next"? How can/will UC vendors build on to or re-imagine...
Oct 17, 2008
thinking of encrypting our unified communications traffic, but won't that negatively affect availability (the very premise on which UC is based)? The short answer is "no". When...
Oct 7, 2008