A lot of things sound simple until you try to do them. You may also
need special tools that you don't have.

You can buy a tone generator, tone tracer, and appropriate punchdown
tools or whatever else you need and do it yourself, but if it's a one
time thing, I'd have the phone guy do it.

qdot wrote:

The phone guy says he can find out how to make other jacks active to
share my phone number (I don't intend to use mutiple lines for now) but
will charge ~$100/hr to do that. It sounds like a simple thing to do
according to him but I don't know how.