《ETSI0285CUG闭合用户群.ppt》由会员分享,可在线阅读,更多相关《ETSI0285CUG闭合用户群.ppt(15页珍藏版)》请在三一文库上搜索。
1、1,ETSI 0285 Closed User Group (CUG) Supplementary Services,刘云峰,Outline,Definition Service description Normal procedures with successful outcome Exceptional procedures or unsuccessful outcome Interactions with other SS,Definition,CUG: Access is restricted Members of a specific CUG can communicate amo
2、ng each other but not, in general, with users outside the group.,Service description,CUG member: A user who has subscribed to the CUG SS CUG index: A value assigned by the network to identify a CUG CUG Interlock Code (IC): Is used by the network to identify CUG membership,MS,Network,preferential CUG
3、: Its the nominated default CUG to be used when no explicit CUG index is received by the network suppress preferential CUG: A user action to prohibit the use of the preferential CUG Incoming Access (IA): MT call outside the CUG. Outgoing Access (OA): MO call outside the CUG.,Service description,supp
4、ress OA: A user action to prohibit the use of the OA subscription option Incoming Calls Barred Within A CUG (ICB): An access restriction that prevents a CUG member from receiving calls from other members of that group. Outgoing Calls Barred Within A CUG (OCB): An access restriction that prevents a C
5、UG member from placing calls to other members of that group. CUG calls: A CUG call is a call which is restricted to a pre-defined group of users.,Service description,Emergency calls, SMS remains unaffected Each individual subscriber may be a member of a maximum of 10 CUGs,Service description,Provisi
6、on Withdrawal, Activation, Deactivation, Invocation,Normal procedures with successful outcome,subscription options 1.CUG calls only 2.IA 3.OA 4.IO and OA 5.ICB 6.OCB,MO CALL,Normal procedures with successful outcome,MT CALL,Normal procedures with successful outcome,M: match with any of the called su
7、bscribers CUGs for the requested basic service group. NM: no match with any of the called subscribers CUGs for the requested basic service group,Normal procedures with successful outcome,1.check its validity in conjunction with the access capabilities 2.Roaming into networks not supporting CUG,Exceptional operation or unsuccessful outcome,CUG interaction with the call forwarding SS,Interactions with other SS,CF: Forward call using the calling subscribers parameters CFm: Forward call using modified calling subscribers parameters CFn: The call is forwarded as a normal call.,15,1,谢 谢,
链接地址:https://www.31doc.com/p-2891836.html