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DIFF Subgroup Additional Only
H04M 2203/253

where a visual mode is used instead of a voice mode

Full Title

Aspects of automatic or semi-automatic exchanges > related to user interface aspects of the telephonic communication service > where a voice mode or a visual mode can be used interchangeably > where a visual mode is used instead of a voice mode

Of 1 combined children, 0 exist in both systems.

1 codes are CPC-only extensions.

Note: 1 CPC extensions are marked as secondary classification only.