EXHBIT 10.30 LA JOLLA COVE INVESTORS, INC. 1795 UNION STREET, 3rd FLOOR SAN FRANCISCO, CALIFORNIA 94123 TELEPHONE: (415) 409-8703 FACSIMILE: (415) 409-8704 E-MAIL: LJCI@PACBELL.NET LA JOLLA www.ljcinvestors.com SAN FRANCISCO - -------------------------------------------------------------------------------- December 12, 2003 Mr. Dean Weber One Voice Technologies, Inc. 6333 Greenwich Drive, Suite 240 San Diego, CA 92112 Re: Warrant Prepayment Dear Dean: This letter will set forth our agreement for the prepayment toward future Warrant exercises under the Warrant Agreement dated as of December 12, 2003 by and between One Voice Technologies, Inc. ("One Voice") and La Jolla Cove Investors, Inc. ("LJCI"). Capitalized terms used herein and not otherwise defined herein shall have the definitions set forth in the Convertible Debenture dated December 12, 2003 issued by One Voice to LJCI. On the effective date of the Registration Statement, LJCI shall wire the sum of $100,000 to One Voice. Such funds shall represent a prepayment towards the future exercise of Warrant Shares under the Warrant Agreement. The timing of the application of the prepaid funds shall be at LJCI's sole discretion. If this letter correctly reflects our agreement regarding the prepayment by LJCI to One Voice toward Warrant exercises, please acknowledge your agreement by signing below. Sincerely, Travis W. Huff Portfolio Manager One Voice Technologies, Inc. By: __________________________ Title: _______________________