CALL FORWARDING ARRANGEMENT FOR TELEPHONE ANSWERING SERVICE SYSTEMS

摘要

A central office, comprising a main switching network and control circuitry for interconnecting line circuit appearances and trunk circuit appearance in the normal manner, is modified by the addition of an auxiliary switching network upon which are terminated telephone answering board incoming trunks and call forwarding trunks. These trunks also appear at respective remote telephone answering switchboards and each has a line circuit appearance in the main switching network. The system is arranged so that an incoming connection via a telephone answering board incoming trunk may be extended to a remote destination via a selected call forwarding trunk under control of the telephone answering board. A controller circuit associated with the auxiliary switching network is responsive to control signals from the remote telephone answering switchboard to enable a connection between the activated telephone answering board incoming trunk and the selected call forwarding trunk via the auxiliary switching network located at the central office.