Your questions is confusing. You have a DSL connection you want to share. OK, use a Firewall or Cable/dsl router. That will get your office/home out the DSL. The confusion is it sounds like the DSL is at the office and you want to have the home use the office DSL ... by dialing into the office first. Why? If you can dial into the office why not just dial your own internet connection? You will not get DSL speed by dialing into the office and using their DSL. You will dial and then be limited to the dial connection speed.
razz