Abstract: An integrated access platform includes a first port configured to receive a first signal from a plain old telephone service (POTS) and a second port configured to receive a second signal from an asymmetric digital subscriber line (ADSL). The integrated access platform also includes a controller system configured to process the first signal and the second signal for access with external networks.

Abstract: The present invention provides clear and robust arbitration of which of two system controllers is in control of a telecommunications switching system. Each system controller monitors and actively reports its status to a separate arbitration circuit. The resultant signal from the arbitration circuit tells the system which controller to obey. By feedback of its own output unnecessary switching or ill-defined control states are avoided. In particular, if either both or neither system controllers is reporting itself as OK, the system does not switch controllers. In addition, the arbitration circuit is fed redundant clock signals and support, making it effectively redundant.

Abstract: A software state event machine for software based process control systems permits state and events to be unified within a common set of data structures for one or more tasks sharing common state numbers. This method reduces overall memory requirements in systems with extensive states and events among multiple tasks.

Abstract: A software state event machine for software based process control systems permits state and events to be unified within a common set of data structures for one or more tasks sharing common state numbers. This method reduces overall memory requirements in systems with extensive states and events among multiple tasks.

Abstract: The present invention provides clear and robust arbitration of which of two system controllers is in control of a telecommunications switching system. Each system controller monitors and actively reports its status to a separate arbitration circuit. The resultant signal from the arbitration circuit tells the system which controller to obey. By feedback of its own output unnecessary switching or ill-defined control states are avoided. In particular, if either both or neither system controllers is reporting itself as OK, the system does not switch controllers. In addition, the arbitration circuit is fed redundant clock signals and support, making it effectively redundant.

Abstract: An integrated access platform includes a first port configured to receive a first signal from a plain old telephone service (POTS) and a second port configured to receive a second signal from an asymmetric digital subscriber line (ADSL). The integrated access platform also includes a controller system configured to process the first signal and the second signal for access with external networks.