• ETSI GTS GSM 03.91
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ETSI GTS GSM 03.91

  • Digital cellular telecommunications system (Phase 2+) (GSM); Explicit Call Transfer (ECT) supplementary service; Stage 2 (GSM 03.91)
  • standard by European Telecommunications Standards Institute, 07/01/1996
  • Publisher: ETSI

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This GSM Technical Specification (GTS) gives the stage 2 description of the call transfer supplementary services. Only one call transfer supplementary service has been defined, this is the Explicit Call Transfer (ECT) supplementary service, and is described in this specification.

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