We have a Norstar Meridian phone system with two outside lines running into the main control box. Originally the two outside lines were plugged into lines 1 and 2 in the control box. Recently line 1 in the control box has shorted out and does not function properly. I have moved the plugs from the lines outside from line one into the line two in the control box and line two into the line three slots in the main box. I now can receive calls on both lines at any of our eleven phones (m7310's and M7208's). However, calls on line one flash on line two and calls on line 2 are lost in space. Can I reprogram the telephones that use line one button to identify with and to use calls coming in on line 2 in the control box as line one and line 2 button to receiver calls that come to the control box on line 3?

Lands Phones - NorStar - M7310 Phone