Abstract: A method and system for maintaining connectivity in a network. The network includes a plurality of computational devices. A first computational device includes a main processor and a co-processor. The first computational device receives the at least one data frame from a second computational device and forwards the at least one data frame to a third computational device by using the co-processor without intervention from the main processor by using network protocols corresponding to layer-2 and layer-1 of Open System Interconnection (OSI) reference model.

Abstract: Methods and apparatus for controlling the execution of individual functions performed by a multi-function battery-powered electronic device, such a cellular telephone. The device user assigns priority values to each function. When the execution of a function is requested, the system determines whether or not the current battery charge level is greater than a threshold level determined by the requested function's assigned priority. If the battery level is too low, the user is alerted with an ignorable warning. Priority levels can be assigned to individual entries in a “phone book” to discourage conversations with low priority parties in order to conserve the battery to permit later calls to or from high priority numbers.