Opening LAN port in a LinkStar

I'm Jordi and I'm of Spain. Forgive my written English, which is not very correct.

In the company that I work, we have internet through a connection for satellite. The router is a LinkStar.

My question is if I can, opening a LAN port, modifying parameters of the router to be able to enter, the server computer of my company, from outside.

I need it to be able to carry out telemaintenance from my home.

Do you know any way of obtaining it?

Thank you very much!

Jordi.