Telephone call relay machine with tape recorder - records at slow speed and plays back recorded messages at high speed over lines

摘要

The call relay machine has a telephone apparatus has the information signals recorded by a tape recorder running at slow speed and then played back at high speed into a telephone terminal for transmission over the telephone network. At the receiving terminal a second tape recorder records the incoming signals at a high speed and then replays them back at a slower speed, thereby reproducing the original signals. The advantage of the system lies in its reducing the time required for the communication via the telephone line and various automatic processes can be incorporated into the system.