27 32 00 Voice Communications Terminal Equipment

27 32 26 Ring-Down Emergency Telephones

27 32 13 Telephone Sets 27 32 16 Wireless Transceivers 27 32 23 Elevator Telephones 27 32 26 Ring-Down Emergency Telephones 27 32 29 Facsimiles and Modems 27 32 36 TTY Equipment 27 32 43 Radio Communications Equipment

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