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 5975-01-415-5650
NSN 6220-00-578-6539
NSN 5985-00-831-0202
NSN 6220-01-522-4937
NSN 5930-01-571-9944
NSN 4140-01-393-9745
NSN 5990-01-602-6701
NSN 5960-00-077-1828
NSN 5998-01-200-7207
NSN 5930-00-217-0956
NSN 5990-01-245-7299
NSN 5999-00-733-3709