EXHIBIT 9
JOINT FILING AGREEMENT,
DATED AS OF AUGUST 21, 2000
In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act
of 1934, as amended, the undersigned hereby agree to the joint filing of IDT
Investments Inc., IDT Corporation and Howard S. Jonas on behalf of each of them
of a statement on Schedule 13D (including amendments thereto) with respect to
shares of Common Stock, par value $0.01 per share, of Net2Phone, Inc., and that
this Agreement be included as an Exhibit to such joint filing. This Agreement
may be executed in any number of counterparts all of which taken together shall
constitute one and the same instrument.
IN WITNESS WHEREOF, the undersigned hereby execute this Agreement this
21st day of August 2000.
IDT INVESTMENTS INC.
By: /s/ Howard Millendorf
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Howard Millendorf
President
IDT CORPORATION
By: /s/ Howard S. Jonas
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Howard S. Jonas
Chief Executive Officer and
Chairman of the Board of
Directors
/s/ Howard S. Jonas
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Howard S. Jonas
