A telecommunication system serves individual programmed instruments by wireless operation, voice dialing and, prepaid operation. The central equipment involves a multiple port wireless platform along with computing capability for interfacing a multitude of mobile station instruments simultaneously for interactive audio communication. Depending on programmed operation, the central equipment may receive vocal instruction data from individual instruments, to bridge connections to other telephone terminals, incur financial transactions, as by credit card number, or to provide a geographic information service. Specific information on physical locations is addressed and fetched on the basis area and target location characteristics.