sundance-communications.com/forum Forums TDM Business Telephone Systems Avaya - Lucent Telephones & Systems Merlin Plus 820-D Intercom

Thanks for the input Dags, I was thinking a little that way too, I was going to stop by the shop in the morning, I have about 7 or 8 of them laying around but as always none have feature mods in them, we stoled them over the years for quick fix service calls, will see what happens, thanks for everybodys input so far

Thanks for the input Dags, I was thinking a little that way too, I was going to stop by the shop in the morning, I have about 7 or 8 of them laying around but as always none have feature mods in them, we stoled them over the years for quick fix service calls, will see what happens, thanks for everybodys input so far

I think there is some confusion here. the 820D is the merlin plus (the tall one with line cards for 4 COs each and station cards for 10 stations each)

The Merlin plus does not work without a grey feature card in the top of it.

The Merlin 820 (without the D) also known as the Merlin classic has 2-0 2-5 or 0-5 cards in it. It can work without a feature module but a feature module is required for the intercom to work. Only a Feature pack 2 will work in an 820 .

All of the websites do not mention intercom as a feature of the feature module but I remember that it was. I will check an old AT&T sourcebook catalog later in the day.

I knew there were basic features that didn't work without a feature card

from the users card:
"With Basic Service the CONFERENCE, TRANSFER, DROP, MESSAGE and SPEAKER buttons are not functional."

~SO~ intercom should work - it was the speaker key that I remember standing out as not working.

ttech, Yes it is a 820-D, Thanks for the other info, didn't get a chance to get there today,Had a few calls in the City first and took longer then I exspected, Monday I'll hit westchester on the way in, this way I can also play around with this over the weekend, I have a few 820-d laying around but no FM, but I can see how it will act without the FM at least, again thanks = Ken @Hitechcomm, 1864, KENB, Tim @ dagwoodsystems & ttech

You should replace the NiCD battery in the feature module and make sure you default the system using the programming defaulting procedure.

Just removing the battery should default the system

The battery isnt an over the counter item as it has 2 L shaped wires soldered on its ends
Its available from a Maine supplier .

Right now it seems you have a questionable feature module working in a questionable control unit ,All you 820ds laying around are quetionable. I would go there with some pretested working equipment as a place to start.