I am looking for a visio, bitmap, gif or jpg of a 3845. Where would I find something like that.

I would like to set up some 7914 icw 7961 so that our agents can monitor other extension within a call center to see who is on a call. Can the ring feature on the 7914 be programmed as silent while the lines/numbers (1-6) on the 7961 remain audible?