A Nokia Report Rattles Telecommunications Shares
Shares of telecommunication equipment makers plummet after Nokia releases figures that point to slowdown in global demand for mobile handsets, raising possibility that ultimate size of market could be smaller than analysts had originally predicted; Nokia estimates that 405 million handsets were sold worldwide last year, 45 percent increase from previous year but short of analysts' expectations for sales of 420 million; Nokia, in unusual move, reports figures weeks before its earnings announcements, scheduled for Jan 30; graph (M)