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 ...

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

Cisco Systems Inc.’s update to its CallManager IP PBX — introduced this week with native Session Initiation Protocol (SIP) support — will require broader ...

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 ...

So I'm running into a situation where address-hiding should be working but is not. Call comes in on port 5060 -->UM Sends back a 302 redirect with the same IP and different port (port will be 506X) ...

Cisco Systems Inc. warned this week that an IOS software glitch could leave VoIP-enabled routers vulnerable to attack. The software flaw affects only Cisco routers running IOS Telephony Services, ...

Telephony Application Programming Interface, or TAPI, allows applications to control the telephone services in Windows. To use TAPI with Cisco CallManager, install the Cisco TAPI Service, or TSP, ...

If you thought routers only linked networks together, then think again. With modern communications processors spending just a fraction of their time actually routing packets it’s possible to get them ...

Cisco Systems has released a security update that addresses flaws in its CallManager and Unified Communications Manager product line. An attacker can exploit the flaws to conduct cross-site scripting ...

When it comes to VoIP, the first question the Reviewmeister has is: How do we make it secure? So we invited Cisco to set up a bulletproof VoIP network. And they did. Cisco’s “maximum-security” VoIP ...

Health insurance giant VHI Healthcare has entered into a deal with Cisco Systems and HP to have IP telephony deployed across the company’s headquarters and two remote sites. The solution, deployed at ...