Real simple answer. Yes, you can tap into it as long as you use a weatherproof box to do so. Phone lines are subject to humidity and temp. variances, so use of a silicone sealer is a must on the connections. It will not interfere with the other phone.
You can probably get the box at Radio Shack or Home Depot. Just mount it on the wall and make the connections on the block in the box, seal them and you're done. |