Phone Stocks Causing Pain For Investors In Europe, Too
Europe's telecommunications giants have lost half trillion dollars in market value since early 2000; European investors are realizing too late that big, seemingly solid telecommunications companies--household names like British Telecommunications, France Telecom and Deutsche Telekom--were actually high-risk bets; losses suffered by investors in European companies seem to be fostering special resentment because companies whose businesses had seemed so conservative turned out to be almost recklessly aggressive; staggering debt at most of companies, especially Deutsche Telekom, detailed; graphs; photo (M)