An IP-PBX phone system stands for Internet Protocol Private Branch Exchange. This system combines the functions of a PBX with VoIP calling to relay audio and video over the internet.

What's another word for "features," as in "PBX features" (the infamous list of 500-800)? Well, the word that one of the audience questioners used in my SIP session this morning was: Value. As in, ...

Nokia and Alcatel are jumping the gun on Wi-Fi phones that work like regular office handsets: They're offering the same capability on ordinary cell phones.

A PBX connects a number of private extensions through a trunk line or lines to the public phone system, routing outbound and incoming calls and providing features such as voicemail and ...

In addition to standard PBX functions once reserved for the enterprise, these products now offer Voice over IP (VoIP) and robust telephony applications, including those for the call center.

The call processing and PBX functions such as call switching, trunking and station access can be distributed across different platforms or even outsourced.

While most observers find Google Voice to be an interesting consumer technology, at least one virtual PBX vendor is working to make the freebie service into a business-class offering. Today ...

In fact, some PBX functions, such as our Announced Caller Digital Assistant, appeared in our hosted service before they became available in hardware PBX equipment.

Verizon said it will offer businesses a new software-based product from Ascendent that extends PBX functions to BlackBerry devices.

The existing RingCentral service works with the customers landline and mobile phone service and combines a toll-free or local number with call management, PBX functions, voicemail and Internet fax.

It also now supports other PBX-like functions such as call transfer, call waiting, conference calls and calls between handsets, the company announced Monday ahead of the Cebit trade show, which ...