I have a MICS 6.0 (another company). I have a RAD on ext. 2263. I have line 150 A/R. The RAD will not answer when called. If I put a set on the port the line rings to the set. I can 9*0 to the RAD fine. I took the RAD back to the shop and put it on the test system (non-pri) and it answers fine. The only setting that I changed was the answer line number. Any ideas.