Abstract: Methods and apparatus are provided for user authentication using a Public Key Infrastructure (PKI) in an IP-based telephony environment, such as an IMS network. A user of a user device attempting to access an IP-based telephony network can be authenticated by obtaining one or more private keys of the user from a secure memory associated with the user device; generating an integrity key and a ciphering key; encrypting the integrity key and the ciphering key using a session key; encrypting the session key with a public key of the IP-based telephony network; and providing the encrypted session key, encrypted integrity key and encrypted ciphering key to the IP-based telephony network for authentication. A network-based method is also provided for authenticating a user in an IP-based telephony network.

Abstract: Methods and apparatus are provided for user authentication using a Public Key Infrastructure (PKI) in an IP-based telephony environment, such as an IMS network. A user of a user device attempting to access an IP-based telephony network can be authenticated by obtaining one or more private keys of the user from a secure memory associated with the user device; generating an integrity key and a ciphering key; encrypting the integrity key and the ciphering key using a session key; encrypting the session key with a public key of the IP-based telephony network; and providing the encrypted session key, encrypted integrity key and encrypted ciphering key to the IP-based telephony network for authentication. A network-based method is also provided for authenticating a user in an IP-based telephony network.

Abstract: A capability for controlling placement and use of wireless network functions within a virtualization environment is presented. The capability for controlling placement and use of wireless network functions in a virtualized environment may include controlling placement of a set of wireless network functions of a wireless network within a virtualization environment to form a set of virtualized wireless network functions, where the set of virtualized wireless network functions includes at least a set of virtualized serving node functions and a set of virtualized gateway node functions. The capability for controlling placement and use of wireless network functions in a virtualized environment may include controlling selection of one of the virtualized gateway node functions responsive to a request for a bearer for a wireless device served by the wireless network.

Abstract: A communication device of an apparatus in one example comprises a radio interface for wireless data transfers over a data channel. The communication device comprises a data channel module adapted to receive at least one data channel request. The data channel request comprises a request for access to the data channel from an application executable on the communication device. The data channel module is adapted to maintain a deferred request list. The data channel module is adapted to determine whether to defer the access to the data channel for the data channel request. The data channel module is adapted to add the application to the deferred request list upon a determination to defer the access for that data channel request.

Abstract: An exemplary method is implemented in a communication system in which periodically updated data for respective end-users is stored in a notification profile at a communication infrastructure node. The updated data is based on conditions associated with each end-user's communication device and its network context, where the data is not presence status. Predetermined rules are stored at the communication infrastructure node and generate respective results based on factors such as network contextual data and corresponding values contained in the notification profile data for each end-user. An event is detected by the communication infrastructure node where the event is intended to cause communication with all the communication devices that are interested in that event. The communication infrastructure node determines an action to be taken in response to the event based on the results of the rules for data associated with the first end-user.

Abstract: Systems and methods are described for dynamically generating one or more group lists as a sub-group of the contact list by assigning tags to contacts in a contact list. A user may define one or more tags for contacts in the contact list to generate a tag list in addition to the contact list. The tags indicate additional attributes of the contact that cannot be included in the contact list. To dynamically generate the group list, the user enters list criteria, and the tag list is searched to identify which of the contacts in the contact list has tags that match the list criteria. The contacts having tags that match the list criteria are combined into a group list which the user may then access to initiate communication with those contacts, or store for later use.

Abstract: A method and apparatus for reducing the number of presence events in a network are provided. This is accomplished by segregating close buddies (on a buddy or contact list) from not-so-close buddies (on the list) for purposes of better managing the flow of presence information in a network.

Abstract: The present invention provides a method for establishing and reestablishing an emergency call to a mobile terminal that is currently not allowed to place normal calls. A mobile terminal that is currently not allowed to place normal calls sends an emergency call request. The communication system determines that the mobile terminal is subscribed to a flexible spending plan and allows the mobile terminal to place the emergency call after checking with a flexible spending limits application. If the emergency call ends improperly, the communication system reestablished the emergency call with the mobile terminal by overriding the prohibition on the mobile terminal receiving normal calls.

Abstract: A method for provisioning a peering relationship between the multimedia networks in a telecommunications system. The method comprises registering a customer with at least one of the multimedia networks; constructing the customer's mapping and routing data (including initial filter criteria) within each of the networks; synchronizing the customer's mapping and routing data between the multimedia networks; and storing the customer's mapping and routing data in a database in each of the multimedia networks. Further, the method results in network selection using the customer's mapping and routing data.

Abstract: An apparatus in one example has: at least one watcher and at least one subject; a presence server operatively coupled to the at least one watcher; at least one location infrastructure operatively coupled to the presence server; location information associated with the at least one subject and formed by the location infrastructure; a presentity presence document associated with the at least one subject, the presentity presence document being stored in the presence server; at least one sensor presence adaptor operatively coupled to the presence server; at least one sensor system having at least one sensor in a respective coverage area; and at least one sensor location database operatively coupled to the sensor presence adaptor, the sensor location database storing respective location data of the sensors; wherein the presence server, utilizing the location information of the subject and the respective location data of the sensors, effects monitoring of the subject by the watcher.

Abstract: Methods and apparatus arc provided for user authentication using a Public Key Infrastructure (PKI) in an IP-based telephony environment, such as an IMS network. A user of a user device attempting to access an IP-based telephony network can be authenticated by obtaining one or more private keys of the user from a secure memory associated with the user device; generating an integrity key and a ciphering key; encrypting the integrity key and the ciphering key using a session key; encrypting the session key with a public key of the IP-based telephony network; and providing the encrypted session key, encrypted integrity key and encrypted ciphering key to the IP-based telephony network for authentication. A network-based method is also provided for authenticating a user in an IP-based telephony network.

Abstract: Systems and methods are described for dynamically generating one or more group lists as a sub-group of the contact list by assigning tags to contacts in a contact list. A user may define one or more tags for contacts in the contact list to generate a tag list in addition to the contact list. The tags indicate additional attributes of the contact that cannot be included in the contact list. To dynamically generate the group list, the user enters list criteria, and the tag list is searched to identify which of the contacts in the contact list has tags that match the list criteria. The contacts having tags that match the list criteria are combined into a group list which the user may then access to initiate communication with those contacts, or store for later use.

Abstract: An exemplary method is implemented in a communication system in which periodically updated data for respective end-users is stored in a notification profile at a communication infrastructure node. The updated data is based on conditions associated with each end-user's communication device and its network context, where the data is not presence status. Predetermined rules are stored at the communication infrastructure node and generate respective results based on factors such as network contextual data and corresponding values contained in the notification profile data for each end-user. An event is detected by the communication infrastructure node where the event is intended to cause communication with all the communication devices that are interested in that event. The communication infrastructure node determines an action to be taken in response to the event based on the results of the rules for data associated with the first end-user.