New service seamlessly employs Click2Talk technology through the Internet 800 Directory. Enables free web-to-phone calling from WhoWhere?, Excite, and WorldPages

Hackensack, NJ and ALBUQUERQUE, NM - May 12, 1998 - IDT Corporation (NASDAQ: IDTC) today announced that it has fully integrated its Click2Talk application into the online Internet 800 toll free directory, whereby users will now be able to place phone calls directly from several other major directories and search engines' web sites, free to any 800 or 888 number, thereby increasing the breadth of E-Commerce worldwide. This will expand the sales and service potential of any business, allowing potential customers to place telephone calls directly from the web to calling centers. The Internet 800 Directory (www.inter800.com), which is directly linked to WhoWhere?, Excite, InfoSpace and Worldpages, provides free listings and searches by company name, business category, 800/888 number and by state. Businesses can electronically submit their listing information via the Web site or by dialing a toll-free number. The Internet 800 Directory is the only major toll-free directory to allow for all users' listings online, free, and regardless of carrier. By integrating the Click2Talk application into the Internet 800 Directory, businesses will be able to expand their E-Commerce offerings worldwide by enabling them to offer seamless U.S. toll free calling to people outside the U.S. Click2Talk works in conjunction with IDT's Net2Phone, the world's first PC-to-phone service, which has already routed over 20 million minutes of IP telephony calls. "Internet users will benefit greatly from this new dialing integration between Click2Talk and the 800 Internet Directory. Now users won't have to log off in order to place a phone call," said Charles H. Arning, Jr., Executive Vice President of JAServices, Inc., who owns the Internet 800 Directory. "For most businesses, this is the first time that they will be able to immediately expand their business potential worldwide by allowing people outside the U.S. to access U.S. toll free numbers." "Providing Click2Talk to the Internet 800 Directory clearly demonstrates the incredible potential for E-Commerce by putting a voice behind a web site," remarked Jim Courter, President of IDT. "Now businesses can potentially radically boost sales from their web sites, and make it easier for their customers to purchase goods and interact with live sales reps at no cost by opening U.S. based merchants to consumers anywhere in the world with an Internet connection." IDT is a leading emerging multinational carrier that combines its position as an international telecommunications operator, its experience as an Internet service provider and its leading position in Internet telephony to provide a broad range of telecommunications services to its wholesale and retail customers worldwide. The company provides its customers with integrated and competitively priced international and domestic Internet telephony services including Net2Phone Direct and Net2Fax.