Natural MicroSystems Corporation

ITEM 8

Financial Statements and Supplementary Data

REPORT OF INDEPENDENT ACCOUNTANTS

To the Board of Directors and Stockholders of Natural Microsystems Corporation:
In our opinion, the consolidated financial statements listed in the index appearing under item 14(a)(1) present fairly, in all material respects, the financial position of Natural Microsystems Corporation and its subsidiaries (the “Company”) at December 31, 1999 and 1998, the results of their operations and their cash flows for each of the three years in the period ended December 31, 1999, in conformity with accounting principles generally accepted in the United States. In addition, in our opinion, the financial statement schedule listed in the index appearing under item 14(a)(2) presents fairly, in all material respects, the information set forth therein for each of the three years in the period ended December 31, 1999, when read in conjunction with the related consolidated financial statements. These financial statements and the financial statement schedule are the responsibility of the Company’s management; our responsibility is to express an opinion on these financial statements and the financial statement schedule based on our audits. The consolidated financial statements and the financial statement schedule give retroactive effect to the merger of QWES.com, Inc. in a transaction accounted for as a pooling of interests, as described in Note 3 to the consolidated financial statements. We conducted our audits of these statements in accordance with auditing standards generally accepted in the United States which require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for the opinion expressed above.

PricewaterhouseCoopers LLP
Boston, Massachusetts
January 24, 2000

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