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 5996-01-222-6378
NSN 5945-00-290-1779
NSN 5999-00-408-5585
NSN 5920-01-103-7683
NSN 4140-01-227-6918
NSN 5910-00-660-9464
NSN 6320-01-461-1390
NSN 4140-01-432-4027
NSN 6135-00-539-8088
NSN 6135-00-062-5080
NSN 6650-01-355-9097
NSN 5895-01-608-9238