This standard establishes requirements for the basic functions, size, quality of communication and other parameters of telephone devices with text output (including cell phones, including smartphones) with video communication and navigation functions, issued by the Social Insurance Fund to the hearing impaired in accordance with [1 ], [2]
GOST R 59552-2021 history
2021GOST R 59552-2021 Major mobile communication functions for person with hearing disabilities. General requirements