Cisco System Inc.’s update to its CallManager IP PBX — introduced this week with native SIP support — will require broader upgrades to other network ...

Tandberg announced Wednesday that two of its videoconferencing endpoints now have native support for Cisco’s new CallManager 4.0 software, giving the endpoints the same features and capabilities as a ...

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, ...

So we run a decrepit CallManager 3.2 system in our office. It is an albatross and needs to go away but we actually serve phone service on it to several offices in our business park using it so it is ...