Abstract: Proxy mobile IP provides mobility to a mobile device that is not equipped to perform client mobile IP by moving the mobile IP signaling responsibility from the mobile device into the network. A network element performs the mobile IP signaling on behalf of the mobile device. In one scenario, the mobile device establishes a PPP session with a foreign agent, with no mobile IP signaling on top of the PPP session. The foreign agent then performs mobile IP signaling with the mobile device's home agent to negotiate a proxy mobile IP session for the device. Once the session registration lifetime has been established by the foreign agent and the home agent, the foreign agent communicates the registration lifetime to the mobile device by way of a PPP vendor-specific packet.

Abstract: Subject matter described herein relates to providing to a mobile device a version of content (e.g., music, video, text message, live call, etc.) that is consistent with a user's filter setting. That is, a user is allowed to specify content elements (e.g., words or images) that are proscribed from being presented on the mobile device, and the user's preferences are stored by a mobile telecommunications network. When the network receives content to be provided to the mobile device, the network edits the content in real time to prevent proscribed elements from being presented on the mobile device.

Abstract: Network address translation allows hosts within a private network (“internal hosts”) to access the Internet through a single or a limited number of public IP addresses. When an internal host accesses the Internet, NAT translates the internal host's private IP address into a temporary public IP address for a given session. A method and media are provided for enabling a host external to the private network (“external host”) to initiate communication with an internal host. The internal host requests that a global address be mapped to its private address. The internal host receives the global address and sends it to a server where it is available to an external host. The mapping between the private address and the global address is maintained in a NAT system so that an inbound connection request from an external host can be forwarded to the internal host.

Abstract: Systems, products, and methods are disclosed for facilitating a method of mapping a numerical keypad to keys of a keyboard on a mobile communications device based on an initial selection of an edge key. One embodiment of the method includes receiving input by way of a given key of the keypad and then dynamically configuring that given key to be a numerical key of a numerical keypad. In particular, input received by way of the numerical key is interpreted as a corresponding numeral regardless of a prior configuration associated with the numerical key. Further, keys of a keyboard within a proximity of the numerical key are mapped to remaining numerical keys of the numerical keypad.

Abstract: Proxy mobile IP provides mobility to a mobile device that is not equipped to perform client mobile IP by moving the mobile IP signaling responsibility from the mobile device into the network. A network element performs the mobile IP signaling on behalf of the mobile device. In one scenario, the mobile device establishes a PPP session with a foreign agent, with no mobile IP signaling on top of the PPP session. The foreign agent then performs mobile IP signaling with the mobile device's home agent to negotiate a proxy mobile IP session for the device. Once the session registration lifetime has been established by the foreign agent and the home agent, the foreign agent communicates the registration lifetime to the mobile device by way of a PPP vendor-specific packet.

Abstract: A method and system for resilient mobile communications in a network when network elements are removed, upgraded or fail are provided. A mobile device communicates with an endpoint through foreign and home agents communicatively connected to the network. An active home agent stores communication information for the mobile node and multicasts the communication information to non-active home agents associated with the active home agent. When an active home agent is removed, upgraded or fails, the mobile device is able to maintain mobile communications with the endpoint through one or more non-active home agent. A non-active home agent having a high priority is transitioned to active status to maintain communication service between the mobile node and endpoint.

Abstract: A method and system for resilient mobile communications in a network when network elements are removed, upgraded or fail are provided. A mobile device communicates with an endpoint through foreign and home agents communicatively connected to the network. An active home agent stores communication information for the mobile node and multicasts the communication information to non-active home agents associated with the active home agent. When an active home agent is removed, upgraded or fails, the mobile device is able to maintain mobile communications with the endpoint through one or more non-active home agent. A non-active home agent having a high priority is transitioned to active status to maintain communication service between the mobile node and endpoint.

Abstract: A method, medium, and communication system are provided for preventing fragmentation when tunneling between a first and second communication network. The communication system includes nodes and routers that transmit packets over the first and second communication networks. The nodes generate requests to identify the maximum transmission sizes of the first and second communication networks. In turn, the nodes format packets based on the minimum of the maximum transmission sizes of the first and second communication networks. The routers transmit the packets formatted by the nodes over the first and second communication networks without fragmenting the packets.

Abstract: A method and system for resilient mobile communications in a network when network elements are removed, upgraded or fail are provided. A mobile device communicates with an endpoint through foreign and home agents communicatively connected to the network. An active home agent stores communication information for the mobile node and multicasts the communication information to non-active home agents associated with the active home agent. When an active home agent is removed, upgraded or fails, the mobile device is able to maintain mobile communications with the endpoint through one or more non-active home agent. A non-active home agent having a high priority is transitioned to active status to maintain communication service between the mobile node and endpoint.