I recently installed an expansion cabinet.
I have a strange problem.
I had 2 DCS7 extensions in the main cabinet, that were used at the front and rear entrance locations to allow visitors to dial internally.
They were on the card in slot 6 @ x's 230 and 231.
(extension 232 was the last phone on the card, and it's a DCS24D that works fine).
When the extensions were shifted to the expansion cabinet, the DCS7 phones stopped working.
I can plug a DCS24D in instead of the DCS7, and it works fine.
Any ideas will be greatly appreciated.
Thanks

When the extensions were shifted to the expansion cabinet
What do you mean by shift MMC724?

I can plug a DCS24D in instead of the DCS7, and it works fine.
Is the 7 button completely dead or is it that the buttons dont work?

Yes, I re-assigned the extensions to their new positions

Did you do an mmc806 when you moved the DLI card?

In mmc 722 for those 7 button sets ,does it show them as 7 button sets as far as programming the keys? And yes what RCA said,what do the 7 button sets do when they are connected? Can you call them from another extension or do you get a plug out indication?

Yes I did do mmc806 when I moved the card.
When you pick up the phone, there is no dial tone.
However,when you press the buttons they do beep.
If I call the phone from another extension,it will ring, but when you pick it up, it continues to ring.
Thanks

So when you have a 7 button set installed on those ports what does mmc 722 look like for those extensions?

I'm going back to the site on Tuesday.
I'll check then.
If I remember correctly, when I checked mmc 722,the 1st and 2nd keys were programmed as Call 1.
As I said before, the phone will ring, but when you pick it up,it continues to ring.
I tried pressing all the buttons, but each button would just beep.
I was unable to answer the call.
All functions of the 24D work properly when plugged into the same port.
Thanks again for all of your help.