Does anyone have an idea on line 031 being transferred to prime set. I have a compact ics w/ 2 sets programmed for lines 031 and 034 to apr.and ring. When calling in on 031 it also rings on intercom @ prime set 21 and the LCD Displays transfer031! I can not find where it's being transferred from. None of the other DNs have these lines set to appear.... Any tips would be helpfull.thanks