471 results about "Branch exchange" patented technology

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).

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 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 mobile branch exchange (MBX) allows a user of a mobile telephone to exploit the functionality of a private branch exchange (PBX) as if the user were using a PBX-connected wire line telephone in an office setting. A server is placed on corporate premises and the server is configured to communicate with corresponding client software programmed into a programmable mobile telephone. The server directly interfaces with the PBX to control call placement and connectivity and operates as an intermediary proxy for the mobile telephone. In a preferred embodiment, the server establishes a data pathway to the mobile telephone that is, from a network point of view, independent of a parallel voice pathway established between the PBX and mobile telephone.

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 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 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.