A system for executing a handover of a mobile communication device from a source access point to a target access point, comprising: an access control module configured to be communicatively coupled to the mobile communication device over a short distance communication link through a short distance communication device, wherein the access control module comprises a physical access control module, and the short distance communication device is embedded into the physical access control module; a management system communicatively coupled to the access control module and the target access point; and a communication network, access to which is controlled by the target access point; wherein the physical access control module is configured to transfer access information from the management system via the short distance communication device to a mobile communication device to allow the mobile communication device to access the target access point; wherein the handover of the mobile communication device from the source access point to the target access point is based on the access information transferred by the physical access control module to the mobile communication device; wherein the physical access control module is further configured to: authenticate the mobile communication device through the short distance communication device; enable physical access to the non-publicly accessible physical site, access to which is controlled by the physical access control module; and transfer the access information via the short distance communication device to the mobile communication device only after the mobile communication device, and/or the user of the mobile communication device, has been authenticated to physically access the non-publicly accessible physical site. an access control module configured to be communicatively coupled to the mobile communication device over a short distance communication link through a short distance communication device, wherein the access control module comprises a physical access control module, and the short distance communication device is embedded into the physical access control module; a management system communicatively coupled to the access control module and the target access point; and a communication network, access to which is controlled by the target access point; wherein the physical access control module is configured to transfer access information from the management system via the short distance communication device to a mobile communication device to allow the mobile communication device to access the target access point; wherein the handover of the mobile communication device from the source access point to the target access point is based on the access information transferred by the physical access control module to the mobile communication device; wherein the physical access control module is further configured to: authenticate the mobile communication device through the short distance communication device; enable physical access to the non-publicly accessible physical site, access to which is controlled by the physical access control module; and transfer the access information via the short distance communication device to the mobile communication device only after the mobile communication device, and/or the user of the mobile communication device, has been authenticated to physically access the non-publicly accessible physical site. authenticate the mobile communication device through the short distance communication device; enable physical access to the non-publicly accessible physical site, access to which is controlled by the physical access control module; and transfer the access information via the short distance communication device to the mobile communication device only after the mobile communication device, and/or the user of the mobile communication device, has been authenticated to physically access the non-publicly accessible physical site.