Signalling system for telephone return call connection - uses memory to hold call number data of calling subscriber

摘要

The signalling system for a telephone return call connection is a local telephone exchange allows the call number data of the calling subscriber to be entered in a memory (MEMTA) for subsequent use by a selection device (WE) to allow a return call to be placed from the called subscriber to the calling subscriber. Pref. an optical display is used to indicate the call number data held in the memory (MEMTA) of the called subscriber. USE - For automatic return call system.