• ETSI EN 300 201
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ETSI EN 300 201

  • Integrated Services Digital Network (ISDN); Call Forwarding No Reply (CFNR) supplementary service; Service description
  • standard by European Telecommunications Standards Institute, 05/01/2001
  • Publisher: ETSI

$13.00$25.50


User-controlled call offer before divert (timer) and updating of the interaction with CCBS.

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