BCM50 with 4 lines in a hunt group. When I test the hunt aspect everything works except line 4 does not ring on the phones. T7208 phones with no line appearances, ring only. Proved the hunt and line pool are working correctly because when I busy out the first three lines and call the main number the forth time it rings on the sending end. You can then answer it on the receiving end by picking up the handset and dialing 9 to access line pool A. On outbound this is the first line selected and it seems to work fine. What am I missing?