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 ...

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 ...