Thank you all for your comments. And please forgive my ignorance, I thought the 107, 760 and 694 were all considered speakers even though I realize some had added perks. I guess what I am looking for is not an intercom, but more of a paging system, where I could depress, say, key #5 on my 2565, and tell someone to pick up line 1, etc. It sounds as if the 107 would still be the best choice since the 760 is not amplified - it might not be loud enough to hear if used for a pager function. Another aspect: are the ohm ratings the same for all 3 of these devices? Would they all work via a 401 line card?
