I have a Nortel Option 11c switch. Anyways, I use MCR keys instead of SCR keys and I am trrying to put an extension that will ring 4 phones. The problem I am encountering is that 2 phones ring when I dial the extension I set up as an MCR key but the other phone dies not. THe type of phones I am using M3904. IS there a reason why a third would not ring? The other question is can I make an analog ring under this new extension I am creating considering it can be added as an MCR?

Please help