Datria Offers First Packaged Field Productivity Voice Application on the Nuance Voice Platform.

Business Editors/High-Tech Writers

MENLO PARK, Calif. & ENGLEWOOD, Colo.--(BUSINESS WIRE)--July 29, 2003

Ticket Management(TM) 2.0 First Packaged VoiceXML Standards-based

Field Service Application

Datria, a leading developer of field service applications, and Nuance (Nasdaq:NUAN), the speech experts, today announced that Datria Ticket Management 2.0 will be available on the Nuance Voice Platform in September. Datria Ticket Management 2.0 is the world's first packaged speech application designed to improve the productivity of field personnel while reducing the costs to support them. Nuance Voice Platform is the industry's first open, VoiceXML standards-based software platform optimized for speech solutions.

"We are building on our long-standing relationship with Nuance," said James Greenwell, Chairman and CEO of Datria. "We've used Nuance speech technologies for a number of years. Now that Nuance has developed its own platform, we felt it was a logical fit for Datria's first packaged application, Ticket Management 2.0. Nuance Voice Platform helps us deliver high quality, low cost applications to our customers."

Ticket Management 2.0 allows field service technicians to manage their work and communicate with their home base using only their voice and a phone. Field representatives can call from any location using any phone and speak directly to their enterprise applications to report or receive job information. Ticket Management 2.0 converts their voice to data and updates the enterprise system. The application then "reads" the data in the enterprise system and speaks it to the field technician. The process is analogous to having the field technician call an agent in a dispatch center, except that no agent is required. By automating the process, Ticket Management 2.0 allows dispatch agents to be re-deployed for other activities such as customer service.

Nuance Voice Platform supports VoiceXML 2.0 -- the open, industry standard for voice applications and services. Because VoiceXML is based on Web architectures, businesses using Nuance Voice Platform can leverage their existing IT staff expertise and Web infrastructure investments. Tightly integrated with Nuance's industry-leading speech technologies, Nuance Voice Platform provides customers and partners optimized access to the latest advances in speech recognition accuracy and human-sounding text-to-speech. Additionally, Nuance Voice Platform offers a broad range of speech specific capabilities designed to deliver maximum business benefits including cost savings, increased customer satisfaction and new revenue from voice-driven services.

"Together, Nuance and Datria have built a reputation of trust and reliability - delivering speech solutions that address real-world business problems," said Chuck Berger, president and CEO, Nuance. "Datria's commitment to delivering packaged, open standards-based speech applications is good news for our customers. The combination of Datria Ticket Management 2.0 and the Nuance Voice Platform will accelerate the business value that speech provides."

Ticket Management 2.0 will be available in September. Nuance Voice Platform is available today. Pricing for both is available upon request.

About Datria

Datria Systems, Inc., designs, sells, and services voice-enabled, packaged software applications focused on improving the productivity of mobile workforces while reducing the cost to support them. Datria's products voice-enable customers' existing applications to provide real-time information exchange between a central office and field representatives, using only their voice and a phone. Datria's first packaged product, Ticket Management 2.0, will be available in September 2003, with other mobile speech applications currently in development. Founded in 1997, and a member of the VoiceXML Forum, Datria is based in Englewood, Colorado. For more information, visit www.datria.com.

About Nuance

Nuance (Nasdaq:NUAN) is the speech expert. Nuance's speech software solutions enable automated access to everything from account balances to flight information, email reading to voice activated dialing - accessed using nothing more than the power of voice and an ordinary phone. In markets around the world, leading enterprises and telecommunications carriers - including British Airways, Nomura Securities, OnStar, Sprint PCS, United Parcel Service, Vodafone, and many more - work with Nuance to reduce costs, increase customer satisfaction and retention, create new sources of revenue and improve security. Nuance is headquartered in Menlo Park, Calif. and has offices around the world. For more information, visit http://www.nuance.com or call 1-888-NUANCE-8.

This press release contains forward-looking statements, including, for example, those relating to the release of new products and the benefits attainable by using speech products. There is no assurance that the results contemplated by any forward-looking statements will be realized. The following factors, risks and uncertainties, among others, could cause actual results to differ materially from those described or implied in this press release's forward-looking statements: the risk that new products and applications will not be released as anticipated or will not achieve anticipated benefits, cost savings and/or customer adoption in some or all circumstances and other factors described in Nuance's filings with the Securities and Exchange Commission, including but not limited to Nuance's last-filed report form 10-Q. Nuance does not undertake to update any oral or written forward-looking statements that may be made by or on behalf of Nuance.

Nuance and Nuance Voice Platform are trademarks of Nuance Communications, Inc. All other trademarks are property of their respective owners.