• ETSI ETS 300 056/A1
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ETSI ETS 300 056/A1

  • Amendment 1 to - Integrated Services Digital Network (ISDN); Call Waiting (CW) supplementary service; Service description
  • Amendment by European Telecommunications Standards Institute, 09/01/1996
  • Publisher: ETSI

$7.00$14.00


This amendment considers the interaction with CFNR and CD.

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