TREA

Generating ring-back signals or tones

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Industry

  • CPC
  • H04N1/32743
This industry / category may be too specific. Please go to a parent level for more data

Parent Industries

HELECTRICITY H04Electric communication H04NPICTORIAL COMMUNICATION H04N1/00Scanning, transmission or reproduction of documents or the like

Current Industry

H04N1/32743Generating ring-back signals or tones
Industries