Ok a few year ago back in the dialup ages we added a line so we could receive phone calls and be on the internet. Now, after we got cable we canceled the 2nd line. Now a few phone jacks in my house are pointing towards the non existent 2nd line. Is there a way I can switch them to the main line myself?
ya open up the phone jack. you should see four colored wires (red,green, yellow, and black???). i cna't remember which colors, but two are for your main line and two are for your second line. swap the sets of wires.
POTS (Plain old telephone system) needs only 2 of the 4 wires in the phone cord. If you look closely at the phone cord end and the jack opening (where the phone cord goes) you should see where the wires should match up. It's really easy to figure out. And yes, you should definitely do this urself since it would be rather costly to have the telephone guy come and do it.