EXHIBIT 17.4 February 26, 1998 Mr. Douglas McClellan President Portacom Wireless, Inc. 10061 Talbert Avenue, Suite 200 Fountain Valley, California 92708 Dear Mr. McClellan: Please accept this letter as my resignation from the Board of Directors of Portacom Wireless, Inc., effective as of today's date. I trust that the shareholders will enjoy increased value in the coming months and years. Sincerely, /s/ H.B. Frantom Howard B. Frantom HBFsy