Sprint Communications Comapny L.p.

Brad Leedy

Thomas Bayerl

A method and apparatus for notifying a user device coupled to an integrated services hub (ISH) that a remote device has terminated communication with the user device. A network interface within the ISH receives a disconnect message from the remote device and routes the disconnect message to a CPU. The CPU determines which user device had been in communication with the remote device and sends a call termination notification signal to a user device interface coupled to the appropriate user device. The termination notification signal comprises temporarily placing the user device interface in a disabled state for a predetermined amount of time. After sending the call termination notification signal, the CPU detects whether the user device is still in an off-hook status. If the user device is off hook, the CPU sends another call termination notification signal by again temporarily placing the user device interface in a disabled state.

Calling party control for an integrated service hub

The present invention discloses a method of automatically detecting and storing the CPU clock frequency in a telecommunications hub. The hub includes a known reference clock for a digital signal processor. A first counter counts the reference clock cycles during the same time period in which a second counter counts the processor clock cycles. The number of processor clock cycles counted is divided by the number of reference clock cycles counted and the result is multiplied by the frequency of the reference clock. The calculated processor clock frequency is compared to a table of available CPU clock speeds and the closest available clock speed is selected. The selected available clock speed is then stored as a variable in RAM for use by all software which uses the processor clock as a base for generating absolute timing signals, such as a one second clock.

Growing community of inventors

East Lansing, MI, United States of America

Brad Leedy