CPC Subgroup Additional Only
H04M 2203/30 related to audio recordings in general
Full Title
Aspects of automatic or semi-automatic exchanges > related to audio recordings in general
5 direct subcodes
Child Classifications
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- H04M 2203/301 Management of recordings
- H04M 2203/303 Marking
- H04M 2203/305 Recording playback features, e.g. increased speed
- H04M 2203/306 Prerecordings to be used during a voice call
- H04M 2203/308 Personal name recording