Help connect internal DB

I have a MS SQL db in my office internal server.

I would to create a table or send some data or update the data of  my big database, in something on internet where my app can connect and download fresh entry.

Unfortunately my intranet access in internet only at port 80.

Can you help me?

Do you have some one at the office who can add a web server front end to the DB to receive requests from web browser?

I could reach my server with a special APN in our sim with 3g protocol!

Ok resolved connectivity but, how protocol or procedure i use to download db data with my app?