On Sun, 18 Mar 2007 16:24:41 -0500, Mark Lloyd
wrote:



My guess is that because they are so close together they are for two
lines.


The house I bought had 3 phone jacks within a few inches of each
other. They were all connected to the same line.

The house was built sometime around 1970, but these jacks were added
later. Apparently, one and then the other 2 even later.

If something is worth saying once, it's worth saying it three times.
That's why you need three jacks.