Telephone exchange with memories - uses pointer and group pointer addresses to apply control commands to selectors

摘要

The telephone exchange stores a group director address in addition to director addresses ensuring the execution of control commands. The group director addresses points in a string of groups to the next address. The addresses perform specified functions according to the devices they address. The advantage lies in monitoring switching events using control commands in a simple manner and in a much shorter time than usual. The control commands are deleted and not the addresses of the devices to which these commands supply.