Siemens' and SPEEDUS' Start-Up, Zargis Medical Corp., Announces Four Appointments to Medical Experts Board; Changes Name From Sound Diagnostics

PRINCETON, N.J., March 26, 2001: Zargis Medical Corp., a newly formed company in which Siemens Corporate Research, Inc. (SCR), a subsidiary of Siemens Corporation, and SPEEDUS.COM, Inc. (Nasdaq: SPDE) are co-investors, announced the appointments of Alvin J. Chin, M.D., Warren David Cooper, M.D., Lee D. Eisenberg, M.D. and Nathaniel Reichek, M.D. to its medical experts board.

The Company also announced that it had changed its name from Sound Diagnostics, Inc. to Zargis Medical Corp. effective immediately.

Zargis Medical was formed to develop and market advanced diagnostic decision support products and services for primary care physicians and other Healthcare professionals. Zargis is currently focusing on technology to assist the primary care physician in the detection of valvular heart disease, by identifying cases that might otherwise go undetected and by improving the recognition of innocent heart murmurs, thereby reducing the number of unnecessary referrals for more expensive diagnostic evaluations.

Speedia Wireless, a wholly owned subsidiary of SPEEDUS, has signed an exclusive contract with Zargis to design and develop the wireless applications, as well as provide transaction processing to support the commercial rollout of Zargis' cardiac diagnostic products.

Raymond Watrous, Ph.D., Chief Technology Officer and Founder of Zargis, said, "We are very pleased to have the benefit for the Company of the guidance of such experienced and highly qualified physicians. Dr. Reichek has been involved from an early stage in the development of the technology; Dr. Chin brings a valuable perspective on neonatal and pediatric cardiology, Dr. Eisenberg provides a special strategic focus on reimbursement, and Dr. Cooper is experienced in the critical area of Internet management of medical record data. We are looking forward to very productive interactions with these distinguished experts."

• Dr. Alvin J. Chin founded (and directed for nearly 12 years) the Non-Invasive Laboratories at The Childrens Hospital of Philadelphia. He is currently Associate Professor of Pediatrics at the University of Pennsylvania School of Medicine and Associate Professor of Biology at the University of Pennsylvania School of Arts and Sciences. Dr. Chin has 19 years experience in academic medicine, is board certified in Pediatrics and Pediatric Cardiology, and serves as one of the 5 Cardiology Managing Editors for the on-line Pediatrics textbook from emedicine.com. Dr. Chins special interests are in the areas of developmental biology, molecular genetics, and non-invasive imaging.


• Dr. Warren Cooper is President of Coalescence Inc., a consulting practice focused on Internet strategies for pharmaceutical and related businesses. Dr. Cooper has more than 20 years experience in the development and commercialization of cardiovascular products and services principally with Merck and Astra-Merck as well as longstanding involvement in global electronic data exchange issues. He currently consults on e-business strategies for several organizations including Merck, AstraZeneca, Conceptis Technologies and the American Heart Association for whom he is a member of their Web Management Task Force.


• Lee D. Eisenberg, M.D., F.A.C.S. is President of KJM Healthcare Consulting, Inc., a consulting company that advises medical practices on coding and reimbursement issues, medical record documentation and compliance. He practices Otolaryngology Head and Neck Surgery in Englewood, New Jersey. He is an Associate Clinical Professor of Otolaryngology Head and Neck Surgery at Columbia University College of Physicians and Surgeons, New York City and The University of Medicine and Dentistry in Newark, New Jersey. Dr. Eisenberg has extensive experience in practice expense, relative value development and practice management. One of his major projects is teaching "The Business of Medicine" to Residents.


• Dr. Nathaniel Reichek is the Director of Cardiology at Allegheny General Hospital in Pittsburgh, Pennsylvania and a Professor of Medicine (Cardiology) at the Medical College of Pennsylvania and Hahnemann University in Philadelphia, Pennsylvania. Dr. Reichek has over 25 years experience in academic medicine and is board certified in Internal Medicine and Cardiology. Dr. Reichek's special interests are in the areas of valvular heart disease, non-invasive imaging, echocardiography and MRI.

• Silvano Dall'Asta is the Chief Financial Officer of Siemens Corporate Research; he has held a variety of business and financial positions in Italy and the U.S. in Siemens and other multinational companies, like Ansaldo and British Drug House (a Glaxo Subsidiary). He was Vice President of Finance of Transcontrol Corp., a Siemens railway signaling company, and most recently he was the Corporate Controller of Siemens Transportation Systems, the Siemens organization serving the rail industry and the Director of Business Planning and Analysis of Unisphere, a Siemens acquisition specialized in the design and manufacture of Information and Communication equipment.


• Shahram Hejazi, Ph.D. is the Director of the Strategic Business Development group at Siemens Corporate Research. His responsibilities include identifying strategic growth opportunities and new business development in the medical and information technology field. He was the original architect in devising a global strategy in e-health for Siemens medical division. Most recently, he has been interfacing closely with startups and the venture capital community to identify early stage strategic opportunities. Prior to this, he has held management positions in product development at Health Imaging Division of Eastman Kodak Company. Earlier in his career, Dr. Hejazi worked in research and development at IBM Corporation and spent several years at two electronic startups.


• Broadband and wireless technology pioneer Shant S. Hovnanian has been Chairman of the Board of Directors, President and Chief Executive Officer of SPEEDUS.COM, Inc. since 1991. Mr. Hovnanian has served as an U.S. State Department Delegate to the World Radio Conference of the International Telecommunications Union in Geneva, Switzerland. From June 1980 until January 1991, Mr. Hovnanian served, as a Managing Director of the V. S. Hovnanian Group, comprised of land development, home building, mortgage banking and private utility operating companies.


• William F. Leimkuhler is the Director of Business Development of PAICE Corporation, a privately held developer of advanced vehicle power trains. From 1994 through 1999, he held various positions with Allen & Company, a New York investment banking firm, initially serving as the firm's General Counsel. Prior to that, Mr. Leimkuhler was a corporate partner with the New York law firm of Werbel & Carnelutti (now Heller Ehrman White & McAuliffe).


• Raymond Watrous, Ph.D. is the Chief Technology Officer and Founder of Zargis. He is a former Distinguished Member of Technical Staff at Siemens Corporate Research, where for 15 years he was engaged in research in adaptive systems, neural networks and speech recognition, and was later responsible for biomedical signal processing research and development. While at SCR, he was instrumental in developing the technology and business plan, which led to the formation of Sound Diagnostics. Dr. Watrous has published numerous technical articles and has been awarded several patents. Prior to coming to Siemens, he was involved for 10 years in speech recognition research and development, engineering design, product development and software development at several advanced technology companies.

About Speedia Wireless

Speedia Wireless delivers end-to-end wireless solutions that enable companies to develop and implement wireless strategies for their customers and mobile employees. With its WorkforceGo product, organizations have an integrated, scalable and easy-to-use solution for real-time, mobile e-mail, business intelligence, reports, and access to legacy applications through a single wireless and web portal, across their extended enterprise.

More information can be found on Speedia's web site at http://www.speedia.com or by calling 1-888-speedia (888.773.3342).

Additional information on SPEEDUS and its services is available at http://www.speedus.com or by calling 718.567.4300.

About Siemens Corporate Research

Siemens Corporate Research, Inc., one of five Siemens R&D centers worldwide, is an affiliate of Siemens AG (NYSE:SI) and is associated with Siemens AGs Corporate Technology organization. First established in the U.S. in 1977, and now based in the Princeton Forrestal Center, SCR is staffed by approximately 150 research and support professionals.

Siemens AG, based in Berlin and Munich, is a leading global electronics and engineering company employing over 447,000 people in 193 countries, with sales of approximately $74 billion worldwide in fiscal 2000 (10/1/99 ? 9/30/00).

The U.S. is the single largest market for Siemens globally. In the U.S., Siemens employs over 73,000 employees and achieved sales of more than $16 billion in fiscal 2000. Siemens' U.S. businesses are leaders in the information and communication, healthcare, energy, industry, financial services, transportation, and lighting sectors.

Additional information about SCR can be found at their web site: http://www.scr.siemens.com.

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CONTACTS:
Justin Blake
EDELMAN
(212) 704-8165
justin.blake@edelman.com

Thomas M. Finn
SPEEDUS
(718) 567-4398
tfinn@speedus.com

The information about this product is preliminary. The product is under development and not commercially available in the U.S., and its future availability cannot be ensured.