Windows 2000 – Network Configuration

I work in a branch office and i have a point to Point T1 one line to the Head Office. All the servers are in the head office and I have about 20 people who use remote services to access resources in the head office. The connection from my branch office to the head office is very slow. What can i do to increase the connection speed from the branch office to the head office? The branch office is about 1200 miles away from the head office. As i said, i have no server here at the branch office and all the applications that the user access are in the head office. The users always complain of a slow network connection to the head office. Your asistance will be appreciated.