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TS 22.085 (SA1)
Closed User Group (CUG)
supplementary services –
Stage 1

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V15.0.0 (PDF)  2018/06  18 p.
V14.0.0  2017/03  19 p.
V13.0.0  2015/12  19 p.
V12.0.0  2014/10  19 p.
V11.0.0  2011/06  19 p.
V10.0.0  2011/04  19 p.
V9.0.0  2009/12  19 p.
V8.0.0  2009/01  19 p.
V7.0.0  2007/06  19 p.
V6.0.0  2004/12  19 p.
V5.0.0  2002/07  19 p.
V4.1.0  2002/03  19 p.
V3.1.0  1999/12  19 p.
GSM Rel-98 v7.0.0  1999/06  18 p.
GSM Rel-97 v6.0.0  1998/10  18 p.
GSM Rel-96 v5.0.0  1996/10  19 p.
GSM Phase-2 v4.2.6  1995/10  19 p.

Rapporteur:  Dr. Swetina, Joerg
See also:

This TS describes the Supplementary Services belonging to the group "Community Of Interest Supplementary Services". This group includes one Supplementary Service: Closed User Group.
The Closed User Group (CUG) Supplementary Service enables subscribers, connected to a PLMN and possibly also other networks, to form closed user groups (CUGs) to and from which access is restricted. A specific user may be a member of one or more CUGs. Members of a specific CUG can communicate among each other but not, in general, with users outside the group.
The ability to set up emergency calls remains unaffected.

full Table of Contents for  TS 22.085  Word version:   15.0.0


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0  ScopeWord-p. 5
1  Closed User Group (CUG)
1.1  Definition
1.2  DescriptionWord-p. 6
1.3  Normal procedures with successful outcome
1.4  Exceptional procedures or unsuccessful outcome
1.5  Alternate proceduresWord-p. 10
1.6  Interactions with other Supplementary ServicesUp
1.7  Interworking considerations
A1 (Normative)  General subscription options (Per Subscriber)Word-p. 13
A2 (Normative)  Originating PLMN actions on call requests on the calling user's sideWord-p. 14
A3 (Normative)  Terminating PLMN actionsWord-p. 15
A4 (Normative)  CUG interaction with the call forwarding Supplementary ServicesWord-p. 16
A5  Change historyWord-p. 17

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