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 5985-01-313-5253
NSN 6620-00-967-9684
NSN 7035-01-492-6486
NSN 5990-01-459-3856
NSN 4140-01-297-0522
NSN 5960-01-458-0774
NSN 5985-01-508-5310
NSN 5985-01-270-2817
NSN 5998-01-181-2478
NSN 6610-01-478-7509
NSN 5925-00-103-1738
NSN 5999-00-467-6714