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 6145-01-427-3520
NSN 5999-01-634-0576
NSN 5915-01-069-2775
NSN 4140-00-660-8699
NSN 5835-01-464-7038
NSN 5999-01-447-3153
NSN 5835-00-759-1109
NSN 6320-00-809-5744
NSN 6105-01-345-3353
NSN 6650-00-103-0867
NSN 6620-01-248-0358
NSN 6320-01-021-6633