Crossword clues for Communications system. 5 lettersAnswerClueTELEXCommunications system of the pastTELEXOutmoded communications systemTELEXPre-fax communications systemTELEXObsolescent communication systemTELEXCommunication system of oldEMAILOffice-communication systemRADIOCommunications system.MORSEWith 11 Across, communication systemMORSE___ code (communication system)EMAILModern communication systemSHIPTOSHORECommunications system.TELCommunication system: Abbr.ASLCommunication system for the gorilla Koko: Abbr.TELETYPEOld communication systemNETWORKCommunications systemONSTARGM communication systemDIGITALNETWORKHigh-tech communications systemBARKCODESDogs' communication systems?HEDYLAMARRGlamour girl who invented a communications system during WWIIWIGWAGNavy communication system.THEGRAPEVINECommunications system.CBSCommunications system.TELETYPECommunications system.ASLCommunication system featured in the Best Picture nominees {/Sound of Metal/} and {/CODA/}TELEXESBygone communication systemsSNAPCHATDisappearing communication system?ASLCommunication system pioneered by Thomas Gallaudet, for shortNATOWith 115-Across, communication system that's a hint to the answer to each starred clueASLCommunication system for the deaf, for shortINTRANETCompanywide communication systemPHONETREECommunication system structured like a pyramidHEDYLamarr who held a patent for a Secret Communication SystemTTYPhone communication system for deaf and hard of hearing peopleCBRADIOCommunication system for long-haul truckers (Abbr.)ETHERNETEarly computer communications systemSEMAPHORE*Distant communication systemASLNonverbal communication system: Abbr.ASLDigital communication system, for shortASLSilent communication system, brieflyMORSECODESystem of communication.BRAILLEOne system of communication.