I want to make some kind of switch that would let me switch from either the first line or the second line
was there any way i could do this?
i wanted it to kinda be like this....

_____________________\/the phone
wallsocket|------[^]----O
_______________^the lil switchbox

it would just be one line from the wall socket then the line would go into some lil box where it splits the line into the switch then you can flip the switch to choose what line to go on the the chosen line would be the line that goes out to the phone
know what i mean?