MIL-T-24649A, MILITARY SPECIFICATION: TELEPHONE, HARDWARE, SOUND POWERED, GENERAL SPECIFICATION FOR (10-JUN-1994)

MIL-T-24649A, MILITARY SPECIFICATION: TELEPHONE, HARDWARE, SOUND POWERED, GENERAL SPECIFICATION FOR (10-JUN-1994)., This specification covers sound powered telephone hardware for use with sound powered telephone systems in Navy ships.