TREA

where the PSTN/ISDN access is used as an access to networks other than PSTN/ISDN

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Industry

  • CPC
  • H04M7/122
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Parent Industries

HELECTRICITY H04Electric communication H04MTELEPHONIC COMMUNICATION H04M7/00Interconnection arrangements between switching centres

Current Industry

H04M7/122where the PSTN/ISDN access is used as an access to networks other than PSTN/ISDN
Industries