作业帮如何来理解GSM SS：CUG(Closed User Group ETSI SPEC 里面的描述如下：The Closed User Group (CUG) Supplementary Service enables subscribers,connected to a PLMN and possibly alsoother networks,to form closed user groups (CUGs) to and from wh
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如何来理解GSM SS：CUG(Closed User Group ETSI SPEC 里面的描述如下：The Closed User Group (CUG) Supplementary Service enables subscribers,connected to a PLMN and possibly alsoother networks,to form closed user groups (CUGs) to and from wh
如何来理解GSM SS：CUG(Closed User Group
ETSI SPEC 里面的描述如下：
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.
如何来理解GSM SS：CUG(Closed User Group ETSI SPEC 里面的描述如下：The Closed User Group (CUG) Supplementary Service enables subscribers,connected to a PLMN and possibly alsoother networks,to form closed user groups (CUGs) to and from wh
你也是做手机软件研发的吧?我是这样理解的：闭合客户群(CUG)：能使一些客户构成闭合客户群,呼入和呼出该客户群要受限制.一个特定的移动客户可以是一个或多个CUG的成员.一个特定CUG的成员彼此间可以相互进行通信,但一般不能与客户群外的客户通信.可以建立紧急呼叫.