Patent ID: 8081593
Filing Date: 2011-12-20
Classification: H04L,H04M,H04W

Abstract:
1. An apparatus, comprising: a mobile switching center configured to provide a closed user group (CUG) supplementary service to a mobile communication device, wherein the mobile communication device is a member of a default CUG without outgoing access and the mobile communication device is not provisioned for outgoing access; wherein the mobile switching center is configured to provide a plurality of CUG interlock codes that correspond to a plurality of closed user groups (CUGs), wherein the plurality of CUG interlock codes comprise at least one outgoing access (OA) CUG interlock code; wherein the mobile switching center is configured to provide a default behavior according to the default CUG for an outgoing call from the mobile communication device to a default CUG user, wherein the mobile switching center is configured to provide outgoing access to the mobile communication device for an outgoing call to a user that is not a member of the default CUG if a setup message from the mobile communication device for the outgoing call comprises a request for the OA CUG interlock code; wherein the request for the OA CUG interlock code comprises at least one message parameter; wherein the at least one message parameter comprises an optional Suppress Preferential CUG (SPC) parameter.