I recently had a brief power failure and many of the features on my home phone system stopped functioning properly. I've been able to fix all but one.

I used to be able to make a call on CO line 1 by simply picking up the handset and it would automatically find line 1. Now I need to press the line 1 "button" in order to get it. Also when a call would come through on line one I could simply pick up the handset and get CO line one... now I have to select the line. How do I get line 1 (CO1) to be the preferred line on all of my keysets? spydr.fleishman@comcast.net