AT-206==>Direct connection telephone/(wheel room) (开关==)
AT-306==>Direct connection telephone/(engine control room) (开关==)
无==>发动机电报单元 (开关==)
ODA-1180-1==>Desk type telephone (开关==)
ODA-1780-1N==>Built-in type telephone/ with noise cancel handset (开关==)
RA1116-6092-1N==>BUILT-IN TYPE AUTOMATIC TELEPHONE/NEW TYPE: ODA-1780-INK FOR NOISY PLACE (放)