Abstract: A system for enhanced call delivery to a roaming cellular subscriber, enabling said subscriber to receive calls placed to his MIN in his home system service area, utilizes a central telecommunications system processor capable of handling network applications, directly connected to a plurality of mobile telephone switches located in the service areas of a plurality of cellular telephone systems, each of said switches connected via a direct communication link to said central telecommunications system processor. A plurality of registers in said central telecommunications system processor are provided for storing data bases of system information, individual switch information, and subscriber information.

Abstract: In a cordless telephone system, a master unit adds to a registration signal an identification (ID) code assigned to a slave unit connectable to the master unit, a master unit transmission password, and an ID code assigned to the master unit, and sends the resulting registration signal to the slave unit. On receiving the registration signal, the slave unit determines whether or not the master unit transmission password is identical with a slave unit password stored therein. If the former is identical with the latter, the slave unit writes the master unit ID code therein, adds the master unit ID code, slave unit transmission password, and slave unit ID code to an end-of-registration signal, and then sends the signal to the master unit. On receiving the end-of-registration signal, the master unit writes the slave unit ID code included in the signal if the slave unit transmission password is identical with a password stored therein.

Abstract: In a paging receiver capable of receiving and displaying a message on a display section, a receivable message format is predetermined not to receive an unnecessary message. The receivable message format is memorized as a predetermined message format in and read out of a random access memory when a reception format of a message is compared with the predetermined message format after coincidence between a reception call number and a preassigned call number assigned to the paging receiver. A plurality of predetermined message formats may be memorized in the random access memory while the preassigned call number may be a group call number.

Abstract: A system and method for remotely signaling a vehicle. The system comprises a pager unit for receiving a wireless communication and for generating a first signal in response to receiving the wireless communication, the pager unit being located in the vehicle. The wireless communication is transmitted by a transmitter to a central switching unit, and from the central switching unit, the wireless communication is relayed through a satellite to the pager unit. The system also comprises a tripping circuit, responsive to the first signal, for generating a second signal, and a switch, responsive to the second signal, for causing an action in the vehicle. The method comprises transmitting a signal by the transmitter to the central switching unit. The signal includes a remote location pager number corresponding to the pager unit and a predetermined security code.

Abstract: A modem normally adapted for use on the PSTN communicates with a radio transceiver, typically a cellular telephone via an interface. The interface is coupled to the modem to communicate audible frequency computer data, control signals and status signals. The interface converts the audio-frequency control signals from the modem into binary signals for the radio transceiver and converts status signals from the radio transceiver to audible-frequency control signals detectable by the modem.

Abstract: A private branch radio extension terminating system includes radio base station units, at least one line control unit, and a central processing unit. The radio base station units are installed in a plurality of places each capable of accommodating a plurality of private branch radio extension terminals within its radio wave range. The line control unit controls the radio base station units. The private electronic branch exchange includes a time-division switch for accommodating the line control unit, a central processing unit for controlling the private branch radio extension terminals via the line control unit and the base station units, and a storage unit for storing various data and programs.

Abstract: An apparatus and method of providing communications between standard unmodified terminal equipment over a telephone link that includes a digital wireless link. The digital wireless link introduces substantial time variable delay. In order to pass time sensitive messages over the link, time sensitive messages are recognized and translated into time insensitive messages for transmission over the wireless link. The time insensitive messages indicate the information contained in the time sensitive messages and in the timing of the time sensitive messages. At the receiving end, the time insensitive messages are recognized and the time sensitive messages reconstructed with the appropriate timing.

Abstract: In connection with cellular telephones, the divergent call treatment technique of the present invention is used to particular advantage. A list of accepted callers is maintained by a service supplier. When a call comes in, a determination is made as to whether the caller is an "accepted" caller. If so, the call is forwarded to the cellular telephone. Otherwise, the caller is offered the option to pay for the call. A willingness on the part of the caller to pay for the call is indicated by a signal from the caller, such as pressing a key on a DTMF pad. In response to such a signal, the call is forwarded to the cellular telephone. In the absence of such a signal, the call is disconnected or diverted.

Abstract: A system and method enables the reception of signals on a moving Personal Station (PS) within an Integrated Voice and Data (IVD) system which integrates sound and data, and comprises an available PBX and LAN. A first Cell Station (CS) registers the LAN identifier of a first PS that is positioned within its own radio cell, and assigns a PBX telephone number to the first PS. Subsequently, calling information which includes a LAN identifier for a second PS and the PBX telephone number assigned to the first PS is broadcast via a LAN. Thereafter, a second CS which registers the LAN identifier of the second PS receives the calling information via a LAN and transfers the information of the second PS, or mobile station, via radio link. The second PS then dials the PBX telephone number included in the calling information. Thus, the link between the first PS and the second PS is connected when the first PS receives the call.

Abstract: In a digital cordless telephone system including master and slave radio stations that are operable in response to first and second frame synchronization signals synchronized with each other to produce first and second TDMA signals in the form of radio signals, respectively, a timing signal whch is produced on the basis of the first frame synchronization signal by the master radio station is transmitted to the slave radio station through a signal line to synchronize the slave radio station with the master radio station and is received by the slave radio station after lapse of a time delay determined by a length of the signal line.

Abstract: A hybrid coaxial cable network employing interdiction to ensure privacy in telephony communications. The video and telephony signals are secured such that telephony and interactive video signals to and from a subscriber do not appear on the network at any other undesired subscriber location.

Abstract: A fiber optic/coaxial cable telephony network including power. Power is supplied through the coaxial cable portion of the video network to an cable network unit where the power is converted and supplied to the equipment including customer premises equipment.

Abstract: A system for clone detection within a communication system includes a message generator for generating a message to a subscriber having a first identifier and forwarding the message for transmission over plural communications channels, a memory for receiving and storing a response to the message from each subscriber using the first identifier, and a processor for determining if an unauthorized subscriber is using the first identifier from the stored responses to the message.

Abstract: A point-of-sale programming system for a selected one of a plurality of types and models of cellular telephone. A point-of-sale computer has an I/O port generating command and data information corresponding to the specific set of command signals and data signals required for the selected telephone to be programmed and for reading the preassigned serial number of the telephone. An interface converts the information into the specific set of command and data signals required for the selected telephone to be programmed. The interface has a telephone interface port through which the specific set of command signals and data signals are provided. The interface reads the preassigned serial number via the telephone interface port. An RS232 cable connects the I/O port of the computer and the interface. A passive cable with an RJ45 connector connects the telephone interface port of the interface and the programming port of the selected cellular telephone.

Abstract: At the access control gateway (105) of a communications system (100) sharing common resources and providing telephone and dispatch services, a service request queue (301) is provided where requests are queued when communication resources are not available. Queuing of dispatch requests does not differ from that used in current dispatch-only systems where all requests are queued for an indeterminate period of time when resources are not available. Telephone service requests, however, are queued for a finite period of time. Should resources become available during the finite period of time, the resources are provided and the request is granted. If resources do not become available before the finite period of time expires then the request is removed from the queue and terminated.

Abstract: A method for handling a call coming via a digital transmission system in terminal equipment suitable for speech and data service, the transmission system including at least one connection element which is a speech transmission connection when the call is in speech service mode and which is a data transmission connection rate-adapted in compliance with the CCITT recommendation V.110 or in a like manner and preferably attached to V.24 interfaces when the call is in data service mode. The terminal equipment starts the connection in speech service mode and automatically changes over to data service mode and initiates a procedure for changing the at least one connection element to a data transmission connection upon receipt, in speech mode, of a predetermined audio signal from the connection. The method can make use of a mobile telephone.

Abstract: Prior-art radio networks constituted by cordless telephones in which the base stations of cordless telephones are connected to an exchange, comprise a control arrangement connected upstream of the base stations. To considerably reduce the circuitry and cost of a radio network constituted by cordless telephones, there is proposed that the exchange sends out a broadcast call addressed to a multiplicity of subscribers, the broadcast call containing a code assigned to a called cordless telephone and that transmitter means are provided in the base stations which send out a code contained in a broadcast call to the cordless telephones. When the command extension options of exchanges are suitably used, the function of a control arrangement in previous base stations can be integrated in the exchange without additional hardware extensions.

Abstract: A terminal connecting device having an automatic data reception feature provides an interface between a radiotelephone and a data terminal device such as a facsimile machine without the need for modifying the specifications of the radiotelephone. By selecting an automatic data reception mode, a telephone subscriber may cause an incoming facsimile call to be engaged by the data terminal device without further subscriber intervention. The radiotelephone is connected to a communication network via a radio line and has connections for voice, call signaling information, and power. The radiotelephone includes switching means for selectively switching between a voice path and a data path, the latter being provided to the terminal connecting device.

Abstract: A device is provided that interfaces with existing point of sale credit card reading devices, and furnishes the option of transmitting data over either the existing modem installation or a radio frequency data communication network. The device scans the information encoded on the credit card to determine which data transmission path is appropriate for a particular transaction. The device software generates the necessary signals to simulate the normal interaction between the POS cardreader device and a modem. The software also converts between serial and packetized data in order to request and receive credit card purchase authorizations over the radio frequency data communication network.

Abstract: A radiotelephone system (100) includes a radiotelephone (103) having a subscription lock and a removable subscriber identification module (SIM) card (105) containing an international mobile subscriber identification (IMSI). The subscriber lock is used to restrict registration into the radiotelephone system (100) to only those radiotelephones which contain a SIM card which has an IMSI which falls within a range of valid IMSIs programmed into the radiotelephone or the user has entered a subsidy flag personal identification number (PIN) for permanently disabling the need for a valid IMSI.