I have a cisco 7945G phone with the SCCP firmware on it. I want to 'upgrade' the firmware to SIP so that I could get it to register with Freepbx. But I want to make sure I can get this right. Does anyone know how to do this or does anyone know of any good resources that show detailed instructions on how to get these registered on Freepbx? I already tried the fourms on FreePbx and I didn't get what I was looking for. Any help would be appreciated!