Method and devices for enhanced manageability in wireless data communication systems

A cellular network system comprising: at least one mobile device (100); a data network (120); at least one server (116, 118 and 300) coupled to the data network (120), which comprises: a receiver configured to receive a device identifier (214) and a subscriber identifier from at least one mobile device (100 ); and a processor (302) comprising a connection enable indicator (312) configured to enable a data network connection and a device identifier comparator (310) configured to compare the received device identifier with one of a plurality of stored device identifiers, each stored device identifier being associated with a stored subscriber identifier; wherein the connection enable indicator (312) is configured to enable a data network connection between the mobile device (100) and the data network (120) when the device identifier comparator (310) identifies a correspondence between the received device identifier and the stored device identifiers, and when no correspondence occurs the processor (302) is configured to replace a stored device identifier corresponding to the subscriber identifier received by the received device identifier according to a condition associated with the received subscriber identifier; wherein when no correspondence occurs, the connection enable indicator (312) is configured to enable a data network connection according to the condition associated with the received subscriber identifier; wherein the condition is defined by at least one of a plurality of rules stored in a device rules database (400), and each rule is associated with at least one stored subscriber identifier; wherein the connection enable indicator (312) is configured to enable the data network connection based at least in part on one of the plurality of rules; and wherein at least one of the plurality of rules indicates whether the received device identifier replaces the stored device.