Cisco SIP based phones have SIP extensions that use the SIP protocol for Cisco proprietary operations like registering a Cisco SIP phone by MAC Address. This blog will take a high level look at ...

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 stomped out a critical vulnerability in its IP Phone web server that could enable remote code execution by an unauthenticated attacker. Cisco is warning of a critical flaw in the web server of ...

Cisco has disclosed today a high-severity zero-day vulnerability affecting the latest generation of its IP phones and exposing them to remote code execution and denial of service (DoS) attacks. The ...

John Breeden II is an award-winning reviewer with more than 20 years of experience covering technology. Follow him on Twitter @TheLabGuys. Office phones have come a long way in a relatively short time ...

Let’s say the doors and windows are all closed, all cell phones in the room are on Airplane mode as you and your business partners discuss some super-secret save-the-world formula. But “just because ...

This blog will be a break from the H.323 blog series I’m currently doing to discuss EoS and EoL information related to Cisco phones. One of my students has recently told me that Cisco would not sell ...