Nippon Telegraph and Telephone Corp. will use Open  Market Inc.'s Transact Internet commerce software for a Japanese electronic   commerce pilot, Open Market announced.   
NTT expects to begin the trial in the current quarter, linking more than  2,000 cardholders with 20 on-line businesses. On-line credit card   settlements are to begin by December, enabling secure purchases from many   commercial Web sites and catalogues.     
  
The effort is part of the Japanese Electronic Commerce Network Project,  a significant trial given that Japan has an estimated 6.7 million people   with Internet access. One recent survey found 35% of Japanese Internet   users have shopped on-line, but mostly for U.S. goods because of the lack   of Japanese merchants on-line.       
Open Market president and chief executive officer Gary Eichhorn said  Open Market, whose customers also include AT&T and British Telecom, "has   effectively captured the entire worldwide telecommunications market for   Internet commerce."     
  
"Open Market is incredibly pleased to gain a customer of NTT's stature,"  he said.