EXHIBIT 99.2 [LETTERHEAD OF THE YANKEE GROUP APPEARS HERE] March 10, 2000 John Kirkpatrick Nuance Communications 1005 Hamilton Court Menlo Park, CA 94025 Re: Consent to use market data in prospectus Dear John: This letter is to authenticate that The Yankee Group has provided Nuance Communications with the following market data and authorizes its use in the prospectus for Nuance's Initial Public Offering of stock. . Land Line Telephone Lines: 831,780,800 in 1998 (source: ITU World Telecommunication Development Report) . Annual churn rate for US consumer long distance: 23.7% (source: 1999 the Yankee Group TAF(TradeMark) Survey) . Annual churn rate for US cellular: approximately 26% (source: the Yankee Group research) . Global Cellular/PCS subscribers: 300 million in 1998, projected to grow to 1 billion in 2003 (source: the Yankee Group research) Sincerely, /s/ Megan W. Gurley Megan W. Gurley Research Analyst