A telephone circuit consisting primarily of telephone relays and associated telephone equipment designed for use in connection with a straight-forward trunk circuit to provide straight-forward signaling facilities on a two wire basis where telephone carrier equipment is not used.
Classification: Articles designed for connection to telegraphic or telephonic apparatus or instruments or to telegraphic or telephonic networks
NSN 5990-01-374-3877
NSN 6685-00-180-0349
NSN 6320-01-358-0141
NSN 5999-01-465-7592
NSN 4140-01-366-0336
NSN 4140-01-431-9065
NSN 6620-00-829-1860
NSN 6220-00-889-7739
NSN 5965-01-147-5655
NSN 5920-00-162-9945
NSN 6240-01-068-8828
NSN 5920-01-400-3562