Hi, I have a main extension (line 1) on my desk phone. I currently have appearance for two additional users (line 2 and line 3). I am trying to configure my settings so that if a call comes in on line 2 I will NOT hear the line ring but if a call comes in on line 3 my phone WILL ring. Tech support does not think this is possible but it seems like it shouldn't be such a problem. They are telling me its an all or nothing for appearance phones to ring.