REGISTRATION RIGHTS AGREEMENT
This REGISTRATION RIGHTS AGREEMENT (this “ Agreement ”), dated as of July 16, 2010, is by
and among VocalTec Communications Ltd., a company organized under the laws of the State of Israel, (the “
Company ”), and Daniel Borislow (the “ Stockholder ”). Certain terms used herein and not otherwise defined
shall have the meanings ascribed to such terms in the Merger Agreement. The parties hereto hereby agree that
this Agreement shall become effective immediately prior to the execution of, and subject to consummation of the
transactions contemplated by, the Merger Agreement (as defined below).
WHEREAS , the Stockholder currently holds shares of common stock of YMax Corporation, a
Delaware corporation (“ YMax ”);
WHEREAS , immediately following the execution of this Agreement, the Company, VocalTec Merger
Sub Inc., a Delaware corporation and wholly-owned subsidiary of the Company, and YMax shall enter into that
certain Agreement and Plan of Merger, dated as of the date hereof (the “ Merger Agreement ”), and pursuant to
the terms and conditions of the Merger Agreement, the common stock held by the Stockholder shall be
exchanged for ordinary shares of the Company (the “ New Shares ”) as set forth in the Merger Agreement; and
WHEREAS , the Company has agreed to provide certain registration rights under the Securities Act of
1933, as amended, and the rules and regulations thereunder, or any similar successor statute (collectively, the “
Securities Act ”), and applicable state securities laws, to the Stockholder with respect to the Registrable
Securities as defined below.
NOW, THEREFORE , in consideration of the premises, the representations, warranties, covenants and
agreements contained herein, and for other good and valuable consideration, the receipt and sufficiency of which
is hereby acknowledged, intending to be legally bound hereby, the parties hereto agree as follows:
1. DEFINITIONS .
As used in