EXHIBIT 12

LUCENT TECHNOLOGIES INC.AND SUBSIDIARIES

COMPUTATION OF RATIO
OF EARNINGS TO COMBINED FIXED CHARGES
AND PREFERRED STOCK DIVIDEND REQUIREMENTS 
AND DEFICIENCY OF EARNINGS TO COVER COMBINED FIXED CHARGES
AND PREFERRED STOCK DIVIDEND REQUIREMENTS (DOLLARS IN MILLIONS)
(UNAUDITED)

|                                                                                                               |  | FOR THE YEARS ENDED SEPTEMBER 30, |      
|-------------------------------------------------------------------------------------------------------------- |  | --------------------------------- | -----
|                                                                                                               |  |                                   |      
|                                                                                                               |  | 2004                              |      
|                                                                                                               |  |                                   |      
|Income
  (loss) from continuing operations before 
     income taxes and losses from equity investments        |  | $                                 | 1,066
|Less:
  interest capitalized during the period                                                                 |  |                                   |     
|Add:
  Fixed charges                                                                                           |  |                                   | 473  
|                                                                                                               |  |                                   |      
|Total
  earnings (loss) to cover fixed charges                                                                 |  |                                   | 1,539
|                                                                                                               |  |                                   |      
|Fixed
  charges:                                                                                               |  |                                   |      
|Total
  interest expense including capitalized interest                                                        |  |                                   | 396  
|Interest
  portion of rental expenses                                                                          |  |                                   | 77   
|                                                                                                               |  |                                   |      
|Total
  fixed charges                                                                                          |  | $                                 | 473  
|Preferred
  stock dividends and accretion                                                                      |  |                                   | (12  
|Ratio
  of earnings to combined fixed charges 
          and preferred stock dividend
  requirements           |  |                                   | 3.3  
|Deficiency
  of earnings to cover combined fixed 
     charges and preferred stock dividend 
     requirements |  | $                                 |     

Fixed charges consist of
interest expense on all indebtedness and that portion of operating lease rental
expense that is representative of the interest factor. Preferred stock dividend
requirements consist of the amount of pre-tax earnings that is required to pay
the dividends on outstanding preferred stock.

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