For several years, he has been principal outside regulatory counsel to American Mobile Satellite Corporation, which launched the first U.S. domestic mobile satellite system. AMSC is a publicly-traded company whose largest shareholders include GM Hughes Communications, AT&T Wireless, and Singapore Telecom. On behalf of AMSC, Mr. Jacobs has participated extensively in proceedings involving the allocation of spectrum, the licensing of satellite systems and mobile terminal equipment, and the regulation of mobile services. He also has counseled AMSC on the communications regulatory compliance issues involved in its 1993 Initial Public Offering, the largest underwriting for a new venture in the United States in that year.

On behalf of another client, WavePhore, Inc., Mr. Jacobs has been active in securing FCC approval for the use of television stations to transmit high-speed data to personal computers, and in a related standards-setting process. He is counsel to the Voice on the Net (VON) and others whose businesses involve multimedia use of the Internet. Mr. Jacobs also represents companies in the areas of cable television, wireless cable, and radio and television broadcasting.