Abstract: According to an example aspect of an embodiment, there is provided that an online server determines mobile device to be monitored based on at least partially an Internet Protocol, IP, address of the mobile device. The online server functionality executes an IP-based two-way communications protocol with the mobile device by transmitting one or more request messages. The online server functionality determines one or more lost responses from the mobile device to the one or more request messages and causes generating a request to another entity for triggering the another entity by one or more recovery methods for the mobile device.

Abstract: A method, apparatus and computer program product are described for reducing delay when making a network connection between user equipment (UE) and a network node when a tracking area update (TAU) request has been denied during LTE reselection. Following a revised signaling protocol, a UE can avoid activation of a NAS Attach Retry timer and move directly to establishing a connection to the network, reducing the UE communications delay from about eleven seconds to less than one second.

Abstract: In accordance with an example embodiment of the present invention, there is provided an apparatus configured to receive a location update reject message and to determine whether a radio resource connection release message is issued in connection with the location update reject message. The apparatus is further configured to, responsive to a determination that a radio resource connection release message is issued in connection with the location update reject message, initiate an attach procedure using a new radio resource connection, and responsive to a determination that no radio resource connection release message is issued in connection with the location update reject message, to initiate an attach procedure using an existing radio resource connection.

Abstract: In accordance with an example embodiment of the present invention, there is provided an apparatus configured to receive a location update reject message and to determine whether a radio resource connection release message is issued in connection with the location update reject message. The apparatus is further configured to, responsive to a determination that a radio resource connection release message is issued in connection with the location update reject message, initiate an attach procedure using a new radio resource connection, and responsive to a determination that no radio resource connection release message is issued in connection with the location update reject message, to initiate an attach procedure using an existing radio resource connection.

Abstract: A method, apparatus and computer program product are described for reducing delay when making a network connection between user equipment (UE) and a network node when a tracking area update (TAU) request has been deniedduring LTE reselection. Following a revised signaling protocol, a UE can avoid activation of a NAS Attach Retry timer and move directly to establishing a connection to the network, reducing the UE communications delay from about eleven seconds to less than one second.

Abstract: A method, apparatus and computer program product are described for reducing delay when making a network connection between user equipment (UE) and a network node when a tracking area update (TAU) request has been denied during LTE reselection. Following a revised signaling protocol, a UE can avoid activation of a NAS Attach Retry timer and move directly to establishing a connection to the network, reducing the UE communications delay from about eleven seconds to less than one second.