text: is it possible to connect simultaneously through two modems installed on the pc?   yes. a company called diamond multimedia made a modem years ago called the shotgun. the idea was, take 2 modems, and 2 seperate phone lines, and combine them inside the computer for faster speeds.  reference: http://www.highbeam.com/library/docfree.asp?docid=1g1:19945391&ctrlinfo=round18%3amode18c%3adocg%3aresult&ao=