The way I understand the Wiki I should be able to set Max Concurrent Calls to 0 and have it only dial one call at a time. No matter what I set it to it will call everyone in the group even if I have already picked up and initiated a conversation with the first call.
I don’t think that’s how that works. IIRC, setting MCC to 0 makes it “unlimited”, which is kind of the opposite of what it sounds like you are trying to do.