471 results about "Branch exchange" patented technology

A method and system for secure Voice over Internet Protocol (IP) (VoIP) communications. The method and system provide secure VoIP voice calls, video, Instant Messaging (IM), Short Message Services (SMS), or Peer-to-Peer (P2P) communications while maintaining privacy over the Internet and other communications networks such as the pubic switched telephone network (PSTN) to and from any network device through a virtual private network infrastructure interconnecting private VoIP network devices. The method and system allow a network device to function as an IP private branch exchange (PBX) or a private VoIP gateway and provide and control VoIP voice communications without using other public or private VoIP gateways or VoIP servers or devices on a communications network such as the PSTN or the Internet.

The present invention relates to a patient care and communication system which utilizes a central processing system and a plurality of remote stations electrically connected to the central processing system to facilitate visual and data communications. Each remote station includes telephone circuitry which is connected to a private branch exchange for telephone communications between stations. In addition, the private branch exchange is connected to a telephone exchange and a plurality of telephones for facilitating telephone communication therebetween. The central processing system facilitates the visual and data communications between the plurality of remote stations, and includes a system for determining which of the plurality of remote stations are transmitting the visual and data communications and which of the plurality of remote stations are to receive the visual and data communications. The central processing system also includes a system which establishes a communication link between the transmitting stations and the receiving stations. The remote stations include a processing system which also facilitates the visual, data and telephone communications and a display for displaying the visual communications. The present invention also includes a staff and / or patient locator system, in which each remote station includes an infrared receiver that receives infrared transmissions from a portable transmitter worn by a staff member or patient. The infrared transmissions include identity information associated with the person wearing the transmitter. The identity information is then transferred to the central processing system which determines the identity and location of each person wearing a portable transmitter.

Techniques are disclosed for automatically reconnecting an interrupted voice call session. For example, a method for use in a communication system switch for managing a call session between a first device and second device includes the following steps. The first device and the second device are connected, via the communication system switch, in accordance with a call session. The first device and the second device are automatically reconnected, via the communication system switch, when the call session is unintentionally interrupted. By way of example, the communication system switch may be a private branch exchange server.

A system is provide for extending services to cellular devices. The system includes a wireless gateway having a client side with an intelligent client agent and a server side with an intelligent server agent, a wireless device having a first mode operable in a cellular system and a second mode operable in a wireless local area network and including an intelligent client agent for determining operation mode and for communicating with the intelligent client agent of the wireless gateway and a communications protocol for communication between the wireless gateway intelligent client agent and the wireless device intelligent client agent to effect services. The services include one or more of voice, directory, presence, and media services. The voice service includes at least one of call waiting, call forwarding conferencing, and caller identification. The media service includes at least one of interactive voice response (IVR), text-to-speech, speech recognition, play, record. The directory service includes a public switched telephone network (PSTN) directory, a cellular network directory, an Internet directory and a private branch exchange (PBX) directory. The communications protocol includes encapsulation for at least one of directory, mobility and security services and other protocols. The other protocols include at least one of Internet protocol (IP), session initiation protocol (SIP), and lightweight directory access protocol (LDAP).

A scalable, multi-protocol mobile switching center in a wireless communications network provides communications control for digital and analog wireless communications devices including devices that operate according to GSM and IS-41 standards. The hardware and software architecture of the switching center is designed so that processing that is unique to a particular protocol is performed at the lowest possible level, and remaining processing can use generic procedures. The switching center incorporates a home location register and visitor location register that are used in conjunction with software applications to determine the protocol of mobile communications devices using the wireless communications network. The mobile switching center can be used to provide a large scale distributed wireless network or a small scale wireless network. The switching center can also be used as an adjunct to a private branch exchange to provide in-building wireless services and call control. Graphical user interfaces make the wireless communications network easy to maintain.

A communications system with distributed intelligence thereby allowing easy expansion of the system while also providing a high degree of fault tolerance. The communications system allows for conversion, transmission and restoration of the human voice over a digital network. A telephone can be used as the input device for receiving the analog signal, or human voice. The telephone is also used to select a destination for the analog signal. The information is transmitted over the digital network and may also traverse through a private branch exchange and a wireless network before it arrives at its destination. At the destination the transmitted information is restored to an analog signal and played over one or more speakers. The present system is especially suited for use with an existing network.

This invention relates to bulk testing of voice messaging applications by playing back an interaction from a recorded script. During development of a voice response system and application it is necessary to simulate a plurality of calls to the system so that the performance under strain can be monitored. Such a simulation can be performed by a bulk call generator which makes real telephone calls to the IVR through a private branch switch. However with bulk call testing some problems occur which rigorous functional and / or performance testing does not find. This is because real callers behave in unpredictable ways which were not expected or assumed by the creators of the functional and / or performance tests. Accordingly there is provided a test system, method and computer program product for testing a voice application in an interactive voice response (IVR) system, said method comprising: acquiring user interactions from a first voice response application dialogue between the IVR system and a user; mapping user interactions from the first voice response application dialogue into machine readable user interaction data such as a script; reproducing user interactions based on the machine readable user interaction data; and sending the simulated user interactions to a second voice response application under test. This solution addresses the problem by providing actual customer data for recreating customer reported problems in the laboratory instead of relying on a programmed bulk call generator.

A scalable, multi-protocol mobile switching center in a wireless communications network provides communications control for digital and analog wireless communications devices including devices that operate according to GSM and IS-41 standards. The hardware and software architecture of the switching center is designed so that processing that is unique to a particular protocol is performed at the lowest possible level, and remaining processing can use generic procedures. The switching center incorporates a home location register and visitor location register that are used in conjunction with software applications to determine the protocol of mobile communications devices using the wireless communications network. The mobile switching center can be used to provide a large scale distributed wireless network or a small scale wireless network. The switching center can also be used as an adjunct to a private branch exchange to provide in-building wireless services and call control. Graphical user interfaces make the wireless communications network easy to maintain.

A real-time interface between the public switched telephone network (PSTN) and an Internet Protocol (IP) network provides voice to data and data to voice conversion between the PSTN and the IP network in a seamless process. The interface, a central communication network, performs Class 5 switching between the PSTN and the IP network, besides providing enhanced services. Receiving a call, the central communication network simultaneously routes the call to a plurality of pre-programmed numbers on the PSTN and on the IP network. The central communication network provides call screening, takes voice messages and converts them to e-mail messages, takes e-mail or facsimile messages and converts them to voice messages. Communication between a PSTN phone on a local PSTN, a computer hooked up to the IP network, a phone hooked up to the IP network by a gateway, a private branch exchange (PBX) on a local PSTN, a wireless communication system with pagers and / or cell phones hooked up to a local PSTN, and facsimile machines on a local PSTN, for example, is provided by the central communication network. Through the central communication network, a computer hooked up to the IP network can exchange voice messages and facsimile messages with a PSTN connected device and conduct conference calling with a plurality of PSTN devices.

A method and system for secure Voice over Internet Protocol (IP) (VoIP) communications. The method and system provide secure VoIP voice calls, video, Instant Messaging (IM), Short Message Services (SMS), or Peer-to-Peer (P2P) communications while maintaining privacy over the Internet and other communications networks such as the pubic switched telephone network (PSTN) to and from any network device through a virtual private network infrastructure interconnecting private VoIP network devices. The method and system allow a network device to function as an IP private branch exchange (PBX) or a private VoIP gateway and provide and control VoIP voice communications without using other public or private VoIP gateways or VoIP servers or devices on a communications network such as the PSTN or the Internet.

A residential private branch exchange (PBX) allowing IP telephones, analog telephones and computers to connect to an IP communication network. A broadband residential gateway (BRG) PBX provides residences with multiple phone lines capability and the implementation of complex calling features traditionally associated with complex and expensive business PBX systems. The BRG PBX provides an open architecture interface minimizing problems during installation and operation, minimizes interoperability problems across multi-vendor equipment platforms and may provide customers with an option to bypass the local telephone company's high cost infrastructure. The BRG PBX may also provide a range of services from basic calling with few features to highly sophisticated calling features servicing multiple phone lines to the residence. The BRG PBX may be configured to connect multiple BRG PBX systems together in a Local Area Network (LAN) or Wide Area Network (WAN) configuration. These network configurations may be implemented to connect neighborhoods or families across multiple geographic regions. In addition to having the capability of connecting to each other, the BRG PBXs may be connected to IP Central Stations forming an IP communication network.

When a telephone a belonging to an office a calls up a telephone b belonging to an office b, a subscriber of the telephone a operates a WS a connected to a computer network and edits camp-on request information when the telephone b is busy. The camp-on request information is transferred from the WS a to a CTI server b belonging to the office b connected to the computer network. The CTI server unit b performs camp-on control between the telephone b belonging to the office b and the telephone a belonging to the office a by controlling a private branch exchange b based on a schedule corresponding to the received camp-on request information.

A method is provided that includes receiving a request from a communication device to establish a communication session with a mobile station, the mobile station being operable to roam between a private and a public network. The mobile station is signaled via a cellular data network that a call is being initiated for the mobile station. Signaling information may be exchanged with a voice gateway such that one or more voice circuits are established. A signaling pathway may be established between an Internet protocol private branch exchange (IP PBX) and the mobile station via the cellular data network. The establishment of the signaling pathway is substantially concurrent with the establishment of one or more of the voice circuits. One or more features associated with a private network are delivered to the mobile station during the communication session as an end user moves between the public and private networks.

A virtual private branch exchange is formed by a plurality of interconnected feature server modules, each having an integral feature server that is configured and operates independently of the other feature server modules. Within a virtual private branch exchange, the feature server modules may be logically arranged in a hierarchy having at least a main feature server module and one or more subordinate feature server modules. A particular feature server module may operate in multiple virtual private branch exchanges, and may have a distinct set of rules for handling calls originating in different virtual private branch exchanges.

Recorded telephone messages may be automatically handled as specified by the called party by means of a background speech recognition server for a telephone network, a private branch exchange, or a personal computer telephone manager. The called party initializes the method by storing multiple action records in a computer, each containing a key word and an action description. Incoming telephone messages can then be automatically processed by subjecting the audio record of each message to a speech recognition program to produce a text record. The computer then compares the text record with the key words in the action records. When a match is found, the action specified in the action record bearing the matching key words, is performed. In this manner, recorded telephone messages may be automatically handled and prioritized as specified by the called party.

The present invention is directed to a method and system for enhancing the routing of telephony data. According to an example embodiment of the present invention, a telephony private branch exchange routing arrangement is adapted to route IP telephony data. The routing arrangement includes a call-control application having an OOP telephony interface and programmed, using OOP and the OOP telephony interface, to control the routing of calls. A device-control application is adapted to provide telephony communication signals for the routed calls and to interface between the call-control application and a plurality of telephony devices. Configuration information for the call-control application is provided via a configuration manager. In this manner, voice and data networks are effectively fused, allowing the easy integration of computer telephony applications.

An emergency call system includes a private branch exchange which includes a channel section, a storage, and a controller, wherein when any of the plurality of extension terminals originates an emergency call using a representative telephone number of the private branch exchange to a command system, the channel section establishes a channel which enables communication between an emergency call extension terminal and the command system, and wherein when the emergency call extension terminal disconnects the emergency call during the emergency call in-progress state, the channel section disconnects a channel to the emergency call extension terminal and keeps connecting a channel to the public network, thereby establishing an emergency call line-hold state.

A method and system for private wireless network communications is provided. A private wireless network controller is coupled to a Private Branch Exchange (PBX), a private base transceiver station, and a Public Switched Telephone Network (PSTN). The private base transceiver station is coupled to a wireless macro network. The private wireless network controller and private base transceiver station allow connection of interconnect and dispatch wireless calls, which originate on the private wireless network, to other mobile stations on the private wireless network, to terminals connected to the PBX, to mobile stations on wireless macro networks, and to terminals coupled to the PSTN.

A client-server telephone call router system as part of a customer premises system has a client-server router adapted to execute on a telephony switch, such as a public branch exchange (PBX) or other telephony switch, or on a processor connected by CTI link to a telephony switch. The telephony switch or processor executing the router is connected to a local area network (LAN) that also interconnects computer workstations proximate to telephones connected to the telephony switch. Client user interface applications run on the computer workstations, allowing clients to edit routing rules for the router, which has a list of routing rules keyed to users and workstations of the customer premises system. The editing rules are kept by the router in portions dedicated to individual users. With this system a user can edit at a workstation on the LAN his\her own routing rules, and transmit the edits to the client-server router where the rules will be followed to route calls for that user and protocol.

A PDC communication controlling apparatus includes an audio processing section for converting a digital audio signal which has been encoded at a transmission rate of a personal digital cellular (PDC) into a digital audio signal at a transmission rate of a digital exchange network, a small radio base station controlling section accommodating a plurality of small radio base stations which are connected to PDC portable terminal units through radio circuits and which have different radio cover areas, the small radio base station controlling section managing the radio cover areas of the PDC portable terminal units, controlling calls, and controlling and managing the radio circuits, a network-side adaptor used in non-audio communications with the PDC portable terminal units, a PDC / network interface section connected to a private branch exchange through a plurality of communication paths, a time division switch for connecting the PDC / network interface, the audio processing section, the radio base station controlling section and the network-side adaptor and for switching the connection state thereof under the control of the small radio base station controlling section on time division basis.

A system and method for configuring a communication device such as IP phone to operate in central and remote networks is disclosed. A central network includes an Internet Gateway Device, an Internet Protocol Private Branch Exchange (IP PBX) and a communication device. The communication device downloads and stores a configuration file including the externally-visible IP address or unique host name of the IP PBX. Upon installation in a remote network, the communication device uses its configuration file to locate the IP PBX and configure itself automatically for use in the remote network.

A method or apparatus to be used with a telephone system, such as a private branch exchange (PBX) trunk, for transmitting extended station information to an emergency call handling center, such as a public safety answering point (PSAP). The apparatus has a central processing unit (CPU) which is connected a PBX interface, a memory database, a first loop interface, and a second loop interface. The PBX interface is connected to the PBX trunk and receives an emergency call from a specified station which initiated the emergency call. The memory database stores information on the plurality of extension stations within a facility. The first loop interface is connected to the PSAP. The second loop interface is also connected to the PSAP. The CPU connects the audio of the emergency call to the first loop interface which in turn transmits the audio to the PSAP. The CPU searches the memory database for information about the specified station which initiated the emergency call, whereby the CPU sends extended station information to the PSAP over the second loop interface while maintaining contact between the specified station which initiated the emergency phone call and the PSAP.

A serverless telephony system (STS) establishes and maintains a voice, data and video exchange between telephony devices using Internet Protocol (IP). The STS in a preferred embodiment comprises software running on a telephony device with a standard packet network connection over a local area network (LAN) or a wide area network (WAN), or a combination, which may include the Internet network. The new system enables one telephony device to establish a connection with another telephony device without intervention by any third device such as a switch or a server. In one embodiment an IP-PBX (Internet Protocol-Private Branch Exchange) application is provided having no server presented in the network for establishing a call between any two IP phones on a Local Area Network (LAN), providing substantially all services typically expected from a standard PBX, and yet functions in compliance with one or more of a H.323, a MGCP, a SIP protocol or any one of other standard protocols.

A method and system for locating a network device connected to a proxy network device in an emergency situation. When an electrical connection, whether through physical wires or over a wireless interface such as spread spectrum technology is made on a proxy network device (e.g., analog terminal adapter (ATA), analog or digital Private Branch Exchange (PBX) system, Digital Enhanced Cordless Telecommunications (DECT) devices, gateway, bridge, router, switch, etc.) for a network device, the proxy network device sends a connection identifier such as a port number or wireless channel number, Device IDentifier (DID) number, etc. to an emergency location server network device to associate the connection identifier on the proxy network device with connected network and with a current physical location to be used in an emergency. When an emergency event occurs, the connection identifier is used to determine an emergency current physical location that is used by first responders.

A mobile station includes a first wireless interface that can couple to a first wireless network, a second wireless interface that can couple to a second wireless network, and a controller. The controller can negotiate a first wireless link with the first wireless network using the first wireless interface and establish a communication session with a remote device using the first wireless link. The controller can also detect a session handoff trigger, negotiate a second wireless link with the second wireless network using the second wireless interface in response to the session handoff trigger, and invoke a private branch exchange feature to transfer the communication session from the first wireless link to the second wireless link.

A mobile station is provided that includes a first wireless interface operable to couple to a first wireless network, and a second wireless interface operable to couple to a second wireless network. A controller included in the mobile station is operable to negotiate a first wireless link with the first wireless network using the first wireless interface, to establish a communication session with a device using the first wireless link, to facilitate the communication session with a second wireless link with the second wireless network using the second wireless interface, and to invoke a selected one of a plurality of private branch exchange features. One or more of the features are delivered to the mobile station via a phone feature proxy function that is enabled by a mobility application that is operable to communicate with the mobile station.

A mobile station includes a first wireless interface that can couple to a first wireless network, a second wireless interface that can couple to a second wireless network, and a controller. The controller can negotiate a first wireless link with the first wireless network using the first wireless interface and establish a communication session with a remote device using the first wireless link. The controller can also detect a session handoff trigger, negotiate a second wireless link with the second wireless network using the second wireless interface in response to the session handoff trigger, and invoke a private branch exchange feature to transfer the communication session from the first wireless link to the second wireless link.