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ITU-T Q.733.1 (02/1992)

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Stage 3 description for call completion supplementary services using Signalling System No. 7 : Call waiting (CW)
Series title: Q series: Switching and signalling, and associated measurements and tests
  Q.700-Q.799: Specifications of Signalling System No. 7
  Q.730-Q.739: ISDN supplementary services
Approval date: 1992-02-04
Approval process:TAP
Status: In force
Maintenance responsibility: ITU-T Study Group 11
Further details: Patent statement(s)
Ed. ITU-T Recommendation Status Summary Table of Contents Download
1 Q.733.1 (02/1992) In force - - here