Abstract: A private messaging system including multiple interoperating, yet potentially competing, trusted couriers. A method and apparatus are provided for the purpose of distributing a trusted courier such that foreground and background messages are handled independently by separate components.

Abstract: A system, various methods, and various apparatuses are provided whereby a Dynamic Personal Virtual Mobile Network can be created, in which multiple disparate networks can be interconnected to form a unified network environment. In this Dynamic Personal Virtual Mobile Network topology changes in real time as a user roams. Handover boundaries are established and taken down as the Dynamic Personal Virtual Mobile Network Topology changes. A Dynamic Personal Virtual Mobile Network is constructed with separate signalling and bearer channel infrastructures to afford greater degree of network engineering and provisioning efficiency. In this Dynamic Personal Virtual Mobile Network, dedicated signalling resources are connected always while shared bearer resources are allocated on demand.

Abstract: A system, various methods, and various apparatuses are provided whereby a virtual mobile network can be created, in which multiple disparate networks can be interconnected to form a unified network environment. In this virtual mobile network environment a user can roam and handover an active call seamlessly between any two interconnected networks. For example, between: a) two private networks, b) a private network and a public cellular network and c) a private network and a public carrier network. The system also enables a user to access enterprise communications services in one network from any networks within this virtual Mobile network environment seamlessly.

Abstract: A system, various methods, and various apparatuses are provided for the purpose of supplying and including in an electronic message or multimedia session signalling unit a valid cryptographic authentication token, verifying said token's validity upon arrival of said message or signalling unit, and thereby providing message recipients or session parties with the assurance that said message or signalling unit is from a valid sender. A system, apparatus, and various methods are further provided for the purpose of protecting legitimate application traffic and the network elements exchanging it from intrusion by wild packets attempting to consume application resources and thereby deny service to legitimate users or network elements.

Abstract: A private messaging system including multiple interoperating, yet potentially competing, trusted couriers. A method and apparatus are provided for the purpose of distributing a trusted courier such that foreground and background messages are handled independently by separate components.

Abstract: An electronic message system that includes a messaging infrastructure to transport an electronic message, where the message includes a message header, a first messaging agent and a second messaging agent in communication with the messaging infrastructure, and a message server to route the message from the first messaging agent to the second messaging agent, where the network server is in communication with the messaging infrastructure, and where the message header is encrypted when being transported by the messaging infrastructure. Also, a method of transporting an electronic message, that includes sending the message from a sender to a message server, where the message server verifies the sender is a sending agent that is registered with the message server, decrypting a message header in the message to ascertain the recipients to receive the message, verifying the recipients are recipient agents that are registered with the message server, and sending the message.

Abstract: Radio units responsive to a paging signal seize a trunk to connect wireless calls to telephone apparatus serviced by a private branch exchange. The radio units can each respond to a different set of mobile identification numbers, or can be configured in a master-slave arrangement or can employ subaddressing. Wireless trunking to a wireless private branch exchange can also be accomplished and a system with multiple hierarchical layers can also be formed.

Abstract: Radio units responsive to a paging signal seize a trunk to connect wireless calls to telephone apparatus serviced by a private branch exchange. The radio units can each respond to a different set of mobile identification numbers, or can be configured in a master-slave arrangement or can employ subaddressing. Wireless trunking to a wireless private branch exchange can also be accomplished and a system with multiple hierarchical layers can also be formed.