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 5895-01-336-0681
NSN 6150-01-126-8589
NSN 6610-01-013-4937
NSN 6220-01-144-2532
NSN 5910-00-231-5977
NSN 6620-00-557-7008
NSN 5930-01-512-2777
NSN 5835-01-412-0344
NSN 5930-01-179-0702
NSN 6645-01-208-3440
NSN 5960-01-317-3800
NSN 5965-01-300-6287