DIGITAL SATELLITE TELEPHONE OFFICE

摘要

TITLE DIGITAL SATELLITE TELEPHONE OFFICE A 4 KHz channel is used for communication between a processing unit associated with a satellite telephone office and a processing unit associated with a connected class 5 telephone office. A data link circuit is connected to the processing unit of the satellite office and operates to transmit data communications between the processing unit of the satellite office and the class 5 telephone office via the 4 KHz channel.