Abstract: This invention relates to a method and apparatus for monitoring and filtering abnormal behavior of mobile stations in a wireless network. More particularly, in one form, the invention is directed to a system to monitor and filter the abnormally high frequency of registrations of a malfunctioning, or rogue, mobile station on a network.

Abstract: A network monitor and associated control system is provided to monitor a toll network for customer signaling. A multi-tone signal processor and associated control is provided such that when signaling is detected, such signaling is validated against a provisioned list. A valid signal is reported to a central control of the network switch, which takes action in response to the signal.

Abstract: This invention relates to arrangements for providing a new spontaneous voice message service to any telephone customer at any telephone station when that customer encounters any destination that is busy or that does not answer. When a customer having a dual tone multifrequency (DTMF) station calls any destination that is busy or does not answer, the customer is invited, via an announcement identifying the new service, to record the caller's voice message. The announcement accompanies the returned busy tone or audible ring signal. The customer keys *867(=*VMS) and is then connected to a Voice Message Operations Center (VMOC) which prompts the customer to record the message. Advantageously, customers need not redial a VMOC number, their own number, and a destination number to reach a VMOC for storing the video message; the added convenience of this arrangement should stimulate substantial additional use of voice message service.

Abstract: A method and apparatus for setting up a digital broadcast call from a transmitting station to a group of receiving stations over a public switched network. A time slot interchange unit (TSIU) is used to replicate a signal, received from a transmitting station at an input port of the TSIU, to a group of output ports of the TSIU for transmission to a group of receiving stations. A data base, shared by a group of switching systems of the public switched network, includes data, activated during a preselected period of time, to translate each of two preselected numbers to one of two corresponding internal routing numbers of the switched network for accessing the input port and output ports of the TSIU, respectively.