<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
                                                                    Exhibit 27.3

THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM BROOKTROUT
TECHNOLOGY, INC.'S CONDENSED CONSOLIDATED BALANCE SHEET AND STATEMENTS OF INCOME
FOR THE PERIOD ENDED MARCH 31, 1997 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH BROOKTROUT TECHNOLOGY, INC.'S 10-Q FOR THE PERIOD ENDED 
MARCH 31, 1997.
</LEGEND>
<MULTIPLIER> 1,000
       
<S>                             <C>                         <C>                         <C>
<PERIOD-TYPE>                   3-MOS                       3-MOS                       3-MOS
<FISCAL-YEAR-END>                          DEC-31-1997                 DEC-31-1997                 DEC-31-1997
<PERIOD-START>                             JAN-01-1997                 APR-01-1997                 JUL-01-1997
<PERIOD-END>                               MAR-31-1997                 JUN-30-1997                 SEP-30-1997
<CASH>                                          32,549                      20,865                      23,313
<SECURITIES>                                     7,788                       8,309                       8,267
<RECEIVABLES>                                    7,613                      11,162                      10,673
<ALLOWANCES>                                       572                       1,100                       1,270
<INVENTORY>                                      5,873                       8,511                       8,690
<CURRENT-ASSETS>                                55,163                      51,867                      54,606
<PP&E>                                           6,190                       8,440                       9,190
<DEPRECIATION>                                   1,681                       1,972                       2,553
<TOTAL-ASSETS>                                  60,221                      60,831                      62,504
<CURRENT-LIABILITIES>                           10,823                      12,843                      13,720
<BONDS>                                              0                           0                           0
<PREFERRED-MANDATORY>                                0                         107                           0
<PREFERRED>                                          0                           0                           0
<COMMON>                                           107                           0                         107
<OTHER-SE>                                           0                           0                           0
<TOTAL-LIABILITY-AND-EQUITY>                    60,221                      60,831                      62,504
<SALES>                                         15,070                      14,725                      19,493
<TOTAL-REVENUES>                                15,070                      14,725                      19,493
<CGS>                                            6,522                       6,543                       8,804
<TOTAL-COSTS>                                    6,522                       6,543                       8,804
<OTHER-EXPENSES>                                 6,431                      11,118                       9,669
<LOSS-PROVISION>                                     0                           0                           0
<INTEREST-EXPENSE>                                   0                           0                           0
<INCOME-PRETAX>                                  2,558                     (2,455)                       1,347
<INCOME-TAX>                                       998                       (980)                         531
<INCOME-CONTINUING>                              1,560                     (1,475)                         816
<DISCONTINUED>                                       0                           0                           0
<EXTRAORDINARY>                                      0                           0                           0
<CHANGES>                                            0                           0                           0
<NET-INCOME>                                     1,560                     (1,475)                         816
<EPS-PRIMARY>                                      .15                       (.14)                         .08
<EPS-DILUTED>                                      .14                       (.13)                         .07
        

</TABLE>