Abstract: A method and system of determining a GGSN to serve data calls in a mobile communications network is provided. Messages are received from a SGSN, and analyzed to determine if the message is requesting the identity of a GGSN. If the received message is requesting the identity of a GGSN, a GGSN selection algorithm is executed to identify a GGSN to serve data calls from a specified MS. A reply is then constructed and sent to the SGSN identifying the selected GGSN.

Abstract: A unified messaging solution and services platform is provided by utilizing the features and capabilities associated with instant messaging to locate a registered user, query the user for a proposed message disposition, and coordinate services among a plurality of communication devices, modes, and channels. A user proxy is registered to the user as a personal communication services platform. The user is able to define various rules for responding to received data and communications, the rules stored within a rules database servicing the communication services platform. Instant messaging is used for communications between the user and the communication services platform's user proxy.

Abstract: A plurality of users communicate in a plurality of real-time text conversations (e.g., “chat sessions”) in a client-server message processing environment using messages including a conversation index, a conversation-initiator ID and a list of message recipients. Each conversation is maintained at client terminals in an individual window. Dropping and controlled adding of conversation participants is attended by message updates to other participants. Alternative peer-to-peer message handling reduces the processing burden on servers while allowing clients to perform control and display functions. Voice or other non-text messages are also communicated using described techniques.