We are trying to find reference documentation to help us know the full capabilities of the Cisco 8851 and 8841 etc range of models. In particular the "Line Key X" section under voice -> Phone section.We'd like to know the full range of commands available under the Extended FunctionSection. We know some functions from searching around. For example: fnc=sd;ext=1234; which translates to Function=speed dial - dial extension 1234. But we have not yet been able to find a comprehensive reference manual that shows a list of all possible commands. Basically I want to be able to read the full manual, that refers to these devices as third party ones, not as Cisco call manager, but can't find it. Thank you for any help on this matter.