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 5855-01-470-3004
NSN 6135-01-273-1253
NSN 6150-01-324-5364
NSN 2925-00-580-4931
NSN 2925-01-049-8906
NSN 5965-00-368-8204
NSN 7035-01-413-6697
NSN 4140-01-502-1370
NSN 6620-01-379-3300
NSN 5835-01-616-6131
NSN 5996-01-392-7220
NSN 6650-01-088-5199