New features in Cisco’s CallManager software promise to make the IP PBX platform more secure and interoperable with standards-based VoIP equipment, while adding native support for video phone calls, ...

The main challenge: Even if an enterprise wants to interconnect different IPT islands, there is no real incentive for two different vendors to interoperate. VoIP/IPT systems have proliferated to the ...

Aiming to let enterprises do more with their IP (Internet Protocol) telephony systems and keep them available when a network goes down, Avaya introduced new software, phones, and a gateway at this ...

StarVox, a 3-year-old company that started life making gear to extend PBX functions to remote sites, is focused now on bringing voice over IP to public phone networks. The company is announcing ...

Estimates are that SIP phone shipments will more than double by 2015, reaching around 4.7 million in units sold around the world. The SIP phone market has changed considerably over the last few years, ...