1 Exhibit 4.15 DILL DILL CARR STONBRAKER & HUTCHINGS A PROFESSIONAL CORPORATION ATTORNEYS AT LAW - ------------------------------------------------------------------------------ Daniel W. Carr Leslie Block Kaye* John J. Coates Fay M. Matsukage** H. Alan Dill Casey Paison Robert A. Dill Jon Stonbraker Thomas M. Dunn Craig A. Stoner John A. Hutchings Patrick D. Tooley ------- Lori Ann Y. Fujioka of Counsel October 13, 1997 * Also licensed in Arizona and New York **Also licensed in Nevada William P. Stueber II President SecurFone America, Inc. 14 East Main Street Somerville, NJ 08876 RE: ADDENDUM TO FEE AGREEMENT Dear Bill: This letter will serve, with your consent, as an addendum to the fee arrangement contained in our letter dated July 11, 1997. SecurFone America, Inc. (the "Client") agrees to issue to Dill Dill Carr Stonbraker & Hutchings, P.C. (the "Firm") 10,000 shares of common stock of SecurFone America, Inc., and the Firm agrees to accept 10,000 shares of common stock of the Client in exchange for legal services provided by the Firm to the Client. All other terms of the fee arrangement contained in the July 11, 1997 agreement shall remain unchanged. Very truly yours, DILL DILL CARR STONBRAKER & HUTCHINGS, a Professional Corporation By: /s/ JOHN A. HUTCHINGS --------------------------------- John A. Hutchings JAH:vkd Enclosures - ------------------------------------------------------------------------------- 455 SHERMAN STREET, SUITE 300 / DENVER, COLORADO 80203 / FAX (303) 777-3823 / (303) 777-3737 E-mail: dillndill@aol.com 2 William P. Stueber II October 16, 1997 Page 2 APPROVED AND AGREED UPON THE FOREGOING TERMS AND CONDITIONS CLIENT: SECURFONE AMERICA, INC. By:/s/ WILLIAM P. STUEBER, II ------------------------------------ William P. Stueber, II President