Hi there, not sure if this is the right forum, Mods, feel free to move it. I've got a Cisco IP Phone 7940 from work for my house so I can connect to our Asterisk PBX, it works perfectly, etc, etc.

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 ...

I just purchased new Cisco 7940 phones and tried to load the SIP 7.4 firmware to run with Asterisk@home 2.2. I'm not sure where I went wrong, but I uploaded the SIP firmware to the TFTP directory on ...

Session Initiation Protocol flaws are making Cisco 7940/7960 IP Phones vulnerable to denial-of-service attacks. The problem was originally discovered by researchers at Radu State. Firmware versions ...