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

Today as expected, Cisco announced they have finally embraced SIP (Session Initiation Protocol). The platform for doing so will be Cisco Unified CallManager5.0, the call-processing component of the ...

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 ...

A recent software upgrade that can turn most Cisco access routers into IP PBXs could provide users with a simple path to follow for converging voice and data networks, and at the same time is causing ...

The surfacing of a pair of flaws in Cisco’s CallManager IP telephony servers last week raises the hot-button issue of how to secure enterprise VOIP networks from attacks. But one industry expert says ...