IDC predicts that ISDN services will enjoy a compound annual growth rate Of nearly 57%,resulting in more than 4.5 million lines in place by 2000.

 
  • IDC預測,ISDN的業(yè)務(wù)將以每年近57%25復合增長(cháng)率增長(cháng),到2000年將有450多萬(wàn)條線(xiàn)。
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