Abstract: Multi-channel communication is affected by system configured to access channel selection data for a participant in a conversation. The channel selection data is analyzed to select a particular secondary communication channel from among a plurality of secondary communication channels associated with the participant. A first message corresponding to the conversation is communicated via the selected secondary communication channel. A second message corresponding to the conversation is received via the selected secondary communication channel. Data representing the conversation is updated using at least a portion of the second message.

Abstract: Multi-channel communication is affected by system configured to access channel selection data for a participant in a conversation. The channel selection data is analyzed to select a particular secondary communication channel from among a plurality of secondary communication channels associated with the participant. A first message corresponding to the conversation is communicated via the selected secondary communication channel. A second message corresponding to the conversation is received via the selected secondary communication channel. Data representing the conversation is updated using at least a portion of the second message.

Abstract: An Application Level Gateway (ALG) based on an universal parser, in a data transmission network. This ALG enables all data flow of an application level protocol to be checked for concordance with the formal syntax description of the data transmission protocol, and with a security policy. The ALG contains a transmission controller, universal parser, and at least one parser plug-in for each universal parser. This parser plug-in is specific to the data transmission protocol, and can be automatically created from the formal syntax description of a data transmission protocol. A security policy (rules, restrictions) can be implemented in the parser plug-in and/or in the settings.