Abstract: A mapping function and method for mapping a Signaling System 7 (SS7) telecommunication signaling message from a Signaling Connection Control Part (SCCP) protocol layer to an Internet Protocol (IP) protocol layer in order to transmit the SS7 signaling message over a data network from an origination node to a destination node. The mapping function receives the SS7 signaling message from the SCCP protocol layer by sending and receiving Message Transfer Protocol (MTP) primitives from the mapping function to the SCCP protocol layer. The mapping function then maps the received SS7 signaling message into an IP message by mapping MTP primitives into IP primitives, mapping the SS7 message address into an IP message address, and utilizing a user interface to set IP protocol parameters that cannot be transferred by the SCCP protocol layer. The mapping function then sends the mapped IP message to the IP protocol layer by sending and receiving IP primitives from the mapping function to the IP protocol layer.

Abstract: An Event Management System (EMS) for logging and correlating alarm events in a network, and a method of efficiently integrating the EMS, which communicates in a standard format, with external devices and external viewers which communicate in device-specific formats. A plurality of core EMS components which log and correlate events are functionally separated from a plurality of EMS boundary components which interact with external devices and external viewers. The boundary components perform both generic external interface functions and device-specific functions. An external device's information, including a class and location for a protocol handler and a content handler for the external device, is stored in an information repository associated with the EMS. When a connection is initiated from the external device to one of the boundary components, the boundary component obtains the external device information from the information repository.

Abstract: A method of routing a call directed to a portable directory number in a radio telecommunications network having an originating mobile switching center (O-MSC), a home location register (HLR), and a Number Portability Database (NPDB). The O-MSC determines whether to send a Location Request (LOCREQ) message to the HLR for a routing number, or to send a Number Portability Request (NPREQ) message to the NPDB for a location routing number (LRN). The determination may be based on operator preference, a default preference, or statistics indicating that either the HLR or the NPDB is more likely to return a routing number. The O-MSC then attempts to obtain a routing number from the determined destination. If an error message is returned, the O-MSC attempts to obtain a routing number from the alternate destination. Upon receipt of a routing number, the O-MSC routes the call.

Abstract: A method in a radio telecommunications network of automatically providing a roamer port number to a calling party when a called roaming mobile station (MS) is in the calling party's exchange. A Roamer Port Notification (RPN) subscriber class is set in the roaming MS's home location register (HLR), and is used to activate a RPN feature. When the RPN feature is activated, the roamer port number for the visited mobile switching center (MSC) is sent to the HLR in either a Feature Request (FEATREQ) Invoke message or a Registration Notification (REGNOT) Invoke message. Thereafter, when the calling party initiates a call directed to the roaming mobile station, it is determined whether the RPN service is activated for the roaming MS, and whether the roaming mobile station is in the calling party's exchange.

Abstract: A method and system for confidential transmissions of documents over existing telephone communications lines is disclosed that generates encrypted documents suitable for reception by a facsimile machine. The encrypted document can be received by a facsimile device (60) at a distant location and decrypted by its intended recipient with the use of a unique encryptogram (38). The encrypted document can be recognized by existing optical character recognition systems and then modified to minimize the number of characters errors. The original text document is processed to create a unique character set prior to transmission and processed again at the receiving end to convert it into its original plain language format.