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TS 02.91 (SA1)
Explicit Call Transfer (ECT) supplementary service – Stage 1

ToC   3GPP‑Page   ETSI‑search   Help    
(P) GSM Rel-98 v7.0.0  1999/06  16 p.
(P) GSM Rel-97 v6.0.0  1998/10  16 p.
(P) GSM Rel-96 v5.1.1  1997/02  17 p.


Rapporteur:  SWETINA, Joerg
Descendant:  TS 22.091
See also:  ECT-related TS/TR

This TS specifies the stage 1 description of Explicit Call Transfer (ECT) from the service subscriber's and user's points of view.

Here is a short description of the ECT service:
  • The ECT supplementary service enables the served mobile subscriber (subscriber A) who has two calls , each of which can be an incoming or outgoing call, to connect the other parties in the two calls and release the served mobile subscribers own connection.
  • Prior to transfer, the connection shall have been established on the call between subscriber A and subscriber B. On the call between subscriber A and subscriber C, either the connection shall have been established prior to transfer, or, as a network option, transfer can occur while subscriber C is being informed of the call (i.e. the connection has not yet been established.)
  • This service is applicable to telephony (Teleservice 11) only.


 

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1 Scope2 References3 Definitions and abbreviations3.1 Definitions3.2 Abbreviations4 Description4.1 Applicability to telecommunication services5 Normal operation with successful outcome5.1 Provision5.2 Withdrawal5.3 Registration5.4 Erasure5.5 Activation5.6 Deactivation5.7 Invocation5.8 Normal operation5.9 Interrogation5.10 Charging requirements6 Exception procedures or unsuccessful outcome7 Alternate procedures8 Interaction with other supplementary services8.1 Calling Line Identification Presentation (CLIP)8.2 Calling Line Identification Restriction (CLIR)8.3 Connected Line Identification Presentation (COLP)8.4 Connected Line Identification Restriction (COLR)8.5 Call Forwarding Unconditional (CFU)8.6 Call Forwarding on mobile subscriber Busy (CFB)8.7 Call Forwarding on No Reply (CFNRy)8.8 Call Forwarding on mobile subscriber Not Reachable (CFNRc)8.9 Call Waiting (CW)8.10 Call Hold (HOLD)8.11 Multi-party (MPTY) service8.12 Closed User Group (CUG)8.13 Advice of Charge (AoC)8.14 Barring of All Outgoing Calls (BAOC)8.15 Barring of all Outgoing International Calls (BOIC)8.16 Barring of all Outgoing International Calls except those direct to the Home PLMN Country (BOICexHC)8.17 Barring of All Incoming Calls (BAIC)8.18 Barring of Incoming Calls when roaming outside the home PLMN country (BIC-Roam)8.19 Call Transfer (CT)9 Interworking considerationsA Deviations of GSM ECT to the ISDN specifications of ECTA.1 Subclause 4.1 Applicability to telecommunication servicesA.2 Subclause 5.8 Normal operationA.3 Subclause 6 Exception procedures or unsuccessful outcomeA.4 Subclause 8.6 and 8.7A.5 AnnexesB [N] Cross Phase compatibilityC Change Request History

 

1  ScopePDF-p. 6
2  References
3  Definitions and abbreviations
4  Description
5  Normal operation with successful outcome
6  Exception procedures or unsuccessful outcome
7  Alternate procedures
8  Interaction with other supplementary servicesUp
9  Interworking considerationsUp
A  Deviations of GSM ECT to the ISDN specifications of ECTPDF-p. 13
B (Normative)  Cross Phase compatibilityPDF-p. 14
C  Change Request HistoryPDF-p. 15

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