PRESS RELEASES

IDT's Net2Phone Names Clifford Sobel President

Successful Entrepreneur to Head IDT's Internet Telephony Division

HACKENSACK, N.J.--(BUSINESS WIRE)--Sept. 19, 1997 -- IDT Corporation (NASDAQ: IDTC) today named Clifford M. Sobel president of IDT's Net2Phone division effective today. In his role as president, Mr. Sobel will work towards securing additional partnerships and expanding the divisions presence worldwide. He will also be active in helping the Company develop and market the division's technologies and commercial applications, such as Net2Phone, the Company's PC-to-phone service, and Net2Phone Direct, the service bridging two telephones via the Internet.

A long-time entrepreneur, Mr. Sobel founded a number of multi-million dollar import-export companies, including DVMI, Bon-Art International, and Bauchet International, all of which were awarded the Sears Chairman's Award. When sold in 1994 by Bear Stearns, Mr. Sobel's companies were employing more than 500 employees nationwide.

``Cliff Sobel has a distinguished record as a businessman and entrepreneur. The combination of his skills and IDT's business momentum should make for a powerful combination,'' said Dennis Bovin, Vice Chairman of Bear Stearns.

``IDT is fortunate to have recruited Mr. Sobel,'' said Len Lauer, President and CEO of New Jersey Bell Atlantic. ``Cliff has a strong standing both in the New Jersey and international business markets. He also has a successful track record in entrepreneurial business opportunities. His international exposure combined with his entrepreneurial skills will make him a valuable asset as he leads IDT in this fighting telecommunications market.''

``Without exception, Cliff is by far the hardest working businessman and best salesman I have ever known, and I am proud that he has decided to join IDT,'' said IDT's CEO Howard Jonas. ``It is very unusual for a self-made individual who is one of the nation's most prominent businesspeople to take a full-time job working for a public Company, but when they do, it says something extraordinary about the Company and the opportunity.''

``Cliff has been a beacon for the state of New Jersey, and has helped us advance our economic development tremendously,'' said Gaulberto Medina, Commissioner of Commerce and Economic Development of the State of New Jersey. ``Without doubt, Cliff is the best friend the state has had in the past four years. He is a decent and honest person who not only has tremendous competence, but great integrity as well. He is unstinting in his commitment to quality, and is one of the finest and most exceptional people I have met.''

Mr. Sobel is an active businessman, philanthropist, and community activist both in New Jersey and throughout the US. He was appointed to the Executive Committee of Prosperity New Jersey, a commission for New Jersey's economic growth, and currently serves as Chairman of the Republican State Finance Committee of New Jersey. By Presidential appointment, Mr. Sobel is a member of the US Holocaust Memorial Council. Mr. Sobel serves as Chairman of the Board of Overseers for the Alexis de Tocqueville Institute, and serves on the boards of Business Executives for National Security and New Jersey Performing Arts Center. He has also served on the US Government Industry Sector International Trade Advisory Board.

IDT Corporation is a diversified telecommunications company with seven years of innovation within the international telecommunications arena. The Company provides international long distance services to individuals and businesses in over 180 countries and directly to telecommunications carriers in the US and overseas. The Company currently has over 400,000 retail customers using an array of services including international long distance and Internet services, and prepaid calling cards. The Company is also a leader in Internet Telephony, with its Net2Phone product -- the first commercial telephone service to bridge live calls between the Internet and telephones.

Except for historical information, all of the expectations and assumptions contained in the foregoing are forward-looking statements involving risks and uncertainties. Important factors that could cause actual results to differ materially from such forward-looking statements, include, but are not limited to, the competitive environment for Internet telephony, changes of rates of all related telco rates and services, legislation that may affect the Internet Telephony industry, IDT's ability to operate the services described on a large scale commercial level. For additional information regarding these and other risks associated with the Company's business refer to the Company's reports filed with the SEC.