Nortel 3x8; probably just as old. It is at my american legion
where I am a director. so I took a look at it. They did upgrade - from what I got out of them - to the newer T7316 phones 6-7 yrs ago before I was there. I assume they had the old M series.

I tried everything.I get into programming, but if i try AA or CCR it says Not Available on the display for both.