Multi-line telephone control system

Abstract From the Canadian patent

An automated telephone calling system receives a group of telephone numbers from a host computer. For each telephone number there is a corresponding record of unique information. The host computer is connected to drive a plurality of operator display terminals. Each number is automatically called and equipment provides detection of rings, busy signals recordings and voice answeres. When a party answers a call, the called line is connected to a non-busy one of a group of operators. At the same time a report is sent from a central controller to the host computer reporting which number has been successfully called and which operator has been selected for the audio connection. The host computer …