Thanks! Looks pretty straight-forward. That will be a big help. My plan is to use 3 ACS extensions for 3 line appearances on the 1A2 that way each phone has access to an icom line, they can call each other through the ACS, and that sort of trickery. Only concern I have is when an outside call comes in. Maybe the fourth line card can be on a partner ext. that is the only one to ring on outside calls so when, say, line four rings you know it's an outside call. Now to figure out the A-lead control so they don't keep ringing if I answer the call from a partner phone...
Just some ideas I guess.
