Abstract: A network device has at least two communication ports to allow the device to communicate with at least two telephony devices. The device has a ring manager to determine if any of the communication ports are silent ports ready to transition from silent to ringing, determine if there is power available to transition the silent ports to ringing ports, transition silent ports to ringing ports until an amount of available power is depleted, and queue remaining silent ports until power becomes available, such that silent ports in the queue may experience cadence distortion.

Abstract: In one embodiment, a current limiter is configured to limit current drawn from a main power supply to a maximum value. A load device is coupled with an output of the current limiter. The load device is configured to periodically draw a first current during operation. The maximum value is below a value of the first current. A charge storage device is coupled with the load device. The charge storage device is configured to supply additional current to the load device to satisfy the first current value. A linear voltage regulator is coupled between the charge storage device and the load device.