virginiajim,
I would highly recomend sitting down and talking this over with a knowledgable person. CMDL_Guy (Larry) has proven himself on this board again and again. Even if you do not go with him, his insight would certainly be worth a little bit of your time. From his past experience, he has a depth and breadth of knowledge that few installation companies posess.

------------------
Intertel Telephone Repair
Toshiba Telephone Repair