A customer has a BCM50 Rls1. They are using one IP phone IP2004. They bought a IP KEM from the Internet and got me to install it. After installing it, I realized it didn't work. The KEM seemed to initialize fine. But the buttons don't work. I then googled it, and read something about a patch and a keycode are required for BCM50 Rls 1 to use IP KEM. Anyone has experience on this. What is the patch called and what keycode is required. Thanks for any reply!