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 6110-01-597-5772
NSN 5915-01-223-5311
NSN 5998-01-555-4413
NSN 5905-00-779-7514
NSN 6130-00-064-5142
NSN 4140-01-099-1698
NSN 4140-00-289-9263
NSN 5998-01-654-7008
NSN 6240-00-953-2673
NSN 5895-01-450-1798
NSN 6240-01-022-7602
NSN 6145-01-503-7378