Abstract: The present invention provides a method for sending a message to a calling phone when a called phone aborts an incoming call request. A mobile unit receives a call request from a calling phone. The communication network determines that the mobile unit has aborted the call request during ringing. For example, the mobile unit may abort the call request by pressing a predetermined key, such as the <END> key, on the mobile unit. The communication network alerts the calling phone that the mobile unit aborted the call request during ringing. The network can play a message to the calling phone that the mobile unit has aborted the call request during ringing, and the message can include additional information, such as the expected length of time that the mobile unit will be unavailable or other predetermined messages.

Abstract: A method is provided for paging a mobile station (40) served by a wireless telecommunications network (A). The method includes: using a plurality of band-classes to selectively communicate with the mobile station (40); remembering which one of the plurality of band-classes was last used to communicate with the mobile station (40); and, selectively paging the mobile station (40) over the wireless telecommunications network (A) when the mobile station (40) is being sought, the paging covering at least the remembered band-class for the mobile station (40) being paged.

Abstract: The present Inter-System Message Delivery System increases the SMS text message delivery success rate. When a mobile subscriber station roams outside of the confines of the cell in which it is presently registered, the delivery of SMS messages to mobile subscriber stations fails, since the mobile subscriber station is not present in the Serving Mobile Switching Center to receive the SMS message. This is particularly common when the mobile subscriber station is moving within the confines of a border cell or multiple cells of a Border Mobile Switching Center and is not yet registered at this Border Mobile Switching Center. The SMS message delivery process initiates a page to the mobile subscriber station via inter-system or inter-Mobile Switching Center paging.

Abstract: A method and apparatus for secure voice communication are provided. More particularly, the present techniques are directed to the introduction of voice security for mobile-to-mobile calls. The coding and decoding is accomplished by handset vocoders, in lieu of coding and decoding accomplished by the network. In this regard, when voice security is determined to be necessary, users select a secured transmission protocol and communicate the selection to the network. All coding and decoding is then performed only in the handsets, as opposed to the network. Moreover, the vocoders implemented, in at least one form, employ security encryption, so that only the two connected mobile users are able to understand the content of the voice transmission.

Abstract: This invention relates to a method and apparatus for improved, or optimized, handling of paging requests to a border switch from neighboring switches. More particularly, a technique is provided to reduce the adverse impact of paging requests on border switches while maintaining a high paging success rate. Data representing probabilities that mobile devices are within selected coverage areas, or cells, of the border switch is collected and maintained. The data is used as a basis to more efficiently page mobile devices throughout the selected coverage areas, or cells, of the border switch.

Abstract: A method of caller ID spoofing includes: receiving a call at a first telecommunications facility (30) from a calling party served by the first telecommunications facility (30), the call being intended for a called party; determining if a caller ID spoofing feature (33) has been invoked for the call; if the caller ID spoofing feature (33) has not been invoked for the call, then establishing true caller ID information for the calling party; and, if the caller ID spoofing feature (33) has been invoked for the call, then establishing false caller ID information for the calling party.