Patent ID: 8346240
Filing Date: 2013-01-01
Classification: H04M,H04W

Abstract:
1. A method for completing a call from a calling party to a mobile subscriber, where the mobile subscriber is assigned a defined zone (a) in a Public Land Mobile Network (PLMN) and where the mobile subscriber is not present in the defined zone, the method comprising the steps of: using a zone server, determining the presence of the mobile subscriber's terminal inside a geographic area surrounding the defined zone (α) wherein the defined zone (α) includes a plurality of cells (β), and wherein the geographic area is defined by a circular perimeter (θ) larger than the defined zone (α) and a radius (ε) measured from a zone geographical centre coordinate (δ) of the zone (α), wherein the zone geographical centre coordinate (δ) is the middle of the maximum and minimum latitudes and maximum and minimum longitudes of the boundaries of the plurality of cells (β), and wherein the circular geographic area having radius (ε) does not follow the boundary of the PLMN; generating an announcement comprising a current location of the mobile subscriber in relation to the defined zone and comprising options for the calling party to complete the call; triggering a Mobile service Switching Centre (MSC) to play the announcement to the calling party; triggering the MSC to return a selection made by the calling party from the options to complete the call; and analyzing and executing the selection made by the calling party.