atcomsystems.ca/forum Forums TDM Business Telephone Systems Avaya - Lucent Telephones & Systems Add 408 ATL to Leg R6

While it is possible to move the modules around in a Legend or Magix, it can result in the need for messy programming changes.

Often it is easier to just add a new module to the first available slot and then do a board renumber. In this instance, you would need to first purchase an expansion carrier.