Why settle for an ancient, analog PBX? The best voice over IP (VoIP) services we've tested deliver enterprise-grade phone system features for a small-business-friendly price.

Barrett Lyon has created a don't miss resource that shows you how to configure P2P SIP URI (Uniform Resource Identifier) dialing on your Asterisk-based PBX. "There are thousands of people that operate ...

"Can Centrex survive or perhaps even thrive in the era of convergence?" Industry observer Jay Brandstadter thinks it can, but maybe not in the form you've known it: "For those considering IP telephony ...

Borrowing technology from its carrier softswitches, Siemens has developed an enterprise network-level IP PBX it says companies can use to consolidate telephony setups based on distributed regional and ...