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, ...

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

KIRKLAND, Wash.--(BUSINESS WIRE)--Telrex today announced that its CallRex version 3.1 is the first VoIP call-recording product verified by an independent third party to support the recording of ...

Now all of SouthTrust’s sites are populated with IP-based phone handsets connected over the data network to a few Cisco CallManager IP PBX server clusters in Birmingham, which are in turn backed up by ...

In the next few weeks IP telephony vendors will launch a parade of new gear and applications aimed at making corporate employees more productive via converged voice, data and video applications.

CallManager's vulnerability to denial-of-service attacks--which could prevent legitimate users from accessing a VoIP network--and attacks that would let users increase their access privileges seem ...

Some organizations consider taking the plunge off PBX platforms into IP telephony as being pretty daring, but that’s nothing compared to what Sam Houston State University (SHSU) is doing. The south ...