A user device (10) provides a subscriber with access to a network service. The user device (10) determines service-specific key material and charging-specific key material. The user device (10) determines a charging record indicating usage of the network service by the subscriber and associates the charging record with first authentication information based on the charging-specific key material. The user device (10) generates at least one message including the charging record and the associated first authentication information. The user device (10) associates the at least one message with second authentication information based on the service-specific key material. The user device (10) sends the at least one message to a first network node (150) which is incapable of relating the charging-specific key material or the service-specific key material to a subscriber identity of the subscriber. The first network node (150) receives the at least one message and the associated second authentication information from the user device (10) and authenticates the at least one message based on the service-specific key material and the second authentication information. In response to authenticating the at least one message, the first network node forwards the charging record and the associated first authentication information to a second network node (120). The second network node (120) is capable of relating the charging-specific key material to the subscriber identity of the subscriber. The second network node (120) receives the charging record and the associated first authentication information from the first network node (150) and authenticates the charging record based on the charging-specific key material and the first authentication information. In response to authenticating the charging record, the second network node (120) controls charging of the network service.

A user device (10) provides a subscriber with access to a network service. The user device (10) determines service-specific key material and charging-specific key material. The user device (10) determines a charging record indicating usage of the network service by the subscriber and associates the charging record with first authentication information based on the charging-specific key material. The user device (10) generates at least one message including the charging record and the associated first authentication information. The user device (10) associates the at least one message with second authentication information based on the service-specific key material. The user device (10) sends the at least one message to a first network node (150) which is incapable of relating the charging-specific key material or the service-specific key material to a subscriber identity of the subscriber. The first network node (150) receives the at least one message and the associated second authentication information from the user device (10) and authenticates the at least one message based on the service-specific key material and the second authentication information. In response to authenticating the at least one message, the first network node forwards the charging record and the associated first authentication information to a second network node (120). The second network node (120) is capable of relating the charging-specific key material to the subscriber identity of the subscriber. The second network node (120) receives the charging record and the associated first authentication information from the first network node (150) and authenticates the charging record based on the charging-specific key material and the first authentication information. In response to authenticating the charging record, the second network node (120) controls charging of the network service.

Systems and methods for managing and providing content and services on a network system. Aspects of the invention include controlling user perceived connection speed. Other aspects of the invention include authorization and authentication components that determine access rights of client computers. Additional aspects include systems and methods for directing client computers to select connection speed. The disclosed systems and methods may be used in numerous network system applications.

A method and system of restoring a functionality of a mobile user device. A lock screen is displayed on the display of the user device. An international mobile subscriber identity (IMSI) of a subscriber identity module (SIM) card presently installed in the user device is determined. The IMSI is sent to a Remote Recovery Server (RRS). A message is received from the RRS indicating whether the IMSI is authorized for the user device and whether an account of the user device is replenished at least in part. Upon determining that the IMSI is authorized for the user device and the account of the user device is replenished at least in part, at least one function that was previously restricted is restored.

A method for enhanced policy and/or charging control when a mobile telecommunications network is used by a user equipment corresponding to a subscriber of a mobile virtual telecommunications network includes; using, by the user equipment, a radio access network; collecting and/or generating, by a radio network element of the radio access network, subscriber-related policy and/or charging control data depending on the use of the radio access network by the user equipment; and transmitting the subscriber-related policy and/or charging control data, from the radio network element to a policy and/or charging control entity, using at least one policy and/or charging control interface.

Disclosed is a voice message exchange system and method for improving communication between an inmate and a third party by enabling the inmate to leave a message when a call is not answered and further allowing the third party who receives the message to reply with a message to the inmate. Additionally, outside parties that meet the institution's requirements can leave messages for inmates at any time. The present invention can be used as an add-on to legacy inmate call management systems or incorporated internally into an inmate call management system. The system also provides monitoring, controlling, recording, and billing means.

Disclosed is a voice message exchange system and method for improving communication between an inmate and a third party by enabling the inmate to leave a message when a call is not answered and further allowing the third party who receives the message to reply with a message to the inmate. Additionally, outside parties that meet the institution's requirements can leave messages for inmates at any time. The present invention can be used as an add-on to legacy inmate call management systems or incorporated internally into an inmate call management system. The system also provides monitoring, controlling, recording, and billing means.

A method and system of detecting a delinquent mobile user device. An international mobile subscriber identity (IMSI) of a subscriber identity module (SIM) card of the user device is determined by the user device. The IMSI is sent to a Remote Recovery Server (RRS). A message is received from the RRS as to whether the IMSI is authorized for the user device. Upon determining that the IMSI is not authorized for the user device, a notification is displayed on a display of the user device.

A method and system of restoring a functionality of a mobile user device. A lock screen is displayed on the display of the user device. An international mobile subscriber identity (IMSI) of a subscriber identity module (SIM) card presently installed in the user device is determined. The IMSI is sent to a Remote Recovery Server (RRS). A message is received from the RRS indicating whether the IMSI is authorized for the user device and whether an account of the user device is replenished at least in part. Upon determining that the IMSI is authorized for the user device and the account of the user device is replenished at least in part, at least one function that was previously restricted is restored.