Telephone system for spoken information transmission - has intermediate local exchange, accessible by dialling access digit, which delivers spoken information, esp. advertising, and allows reconnection to public network on dialling access digit

摘要

The telephone system transmits speech between a caller and a receiver selected from a public telephone network. The caller (1) dials an access number from a public telephone box via the public telephone network (2) operating through a local exchange (3). The local exchange is operated by a telephone subscriber and delivers spoken information, and then after further dialling a code-number, reaches the required receiver again via the public network (2'). An automatic subscriber driven local exchange may be used for automatic announcements, esp. for advertising. After dialling a code number allows connection with desired end user. ADVANTAGE - No charge or reduced charge for caller from public telephone box (5) while connected to spoken information local exchange.