Abstract: The subject matter disclosed herein includes methods, systems, and computer program products for selecting among different global title translation modes based on a message originator and performing global title translation based on the selected mode. According to one method, a global title translation mode is selected based on a message originator. A global title translation lookup is performed in accordance with the selected mode. If the global title translation according to the selected mode fails, a lookup may be performed according to at least one additional mode in a global title translation mode hierarchy.

Abstract: Methods and systems are described for changing a communication quality of a communication session based on a meaning of speech data. Speech data exchanged between clients participating in a communication session is parsed. A meaning of the parsed speech data is determined for identifying a service quality indicator for the communication session. An action is performed to change a communication quality of the communication session based on the identified service quality indicator.

Abstract: Storing and restoring a communication session includes establishing a communication session by exchanging dialog. Dialog from the communication session is stored to a persistent storage. Endpoints participate in the communication session to assert functionality to a monitoring module. If a failure occurs during the communication session, an endpoint receives the stored dialog from the persistent storage. Furthermore, the endpoint restores the received dialog onto a protocol stack to continue the communication session without loss of dialog.

Abstract: A transmitting/receiving unit receives a SIP signal after occurrence of trouble in a SIP server and outputs a call ID of the SIP signal to a recovery-file searching unit. A session control unit once again procures a call process resource and an instance for a session corresponding to a recovery file and stores the call process resource data and the instance data in a main storage unit. The main storage unit stores anew session data included in the recovery file. A recovery-file creating unit creates the recovery file. An external storage unit stores therein the recovery file. The recovery-file searching unit retrieves from the external storage unit the recovery file that matches with the call ID output by the transmitting/receiving unit and outputs the recovery file to the session control unit and the main storage unit.

Abstract: A communication device comprises a first transmitter configured to transmit a telephone signal via a broadband-communication link to an IP network, and a second transmitter configured to transmit a telephone signal via an alternative communication link to a telephone network. The telephone signal is transferred from a first telephone number for identifying the communication device in the transmission of the telephone signal via the broadband-communication link to a second telephone number associated with the alternative communication link when a power failure occurs during a transmission of the telephone signal via the broadband-communication link.

Abstract: The invention relates to a method for transmitting connected line information to a calling entity in a telecommunications network. A first connection between a calling entity and a first remote entity has been disconnected. The telecommunications network comprises a service control entity and a service switching entity. The service switching entity performs:—receiving a first instruction from the service control entity to establish a second connection between the calling entity and a second remote entity,—receiving a second instruction from the service control entity comprising a connected line notification indicator, receiving an indication that the second connection between the calling entity and the second remote entity has been established comprising connected line information of the second remote entity. The method further comprises—based on the connected line notification indicator sending towards the calling entity a message comprising the connected line information of the second remote entity.

Abstract: A ring-back tone generator system receives an inbound call connection request forwarded from a phone switch (such as an MSC) that receives the inbound call connection request from a caller phone attempting to connect to a target phone (e.g., a subscriber). The ring-back tone generator system initiates generation of a first call connection on which to provide the customized ring-back tone (and/or custom video image data) to the caller phone. The ring-back tone generator system also transmits, based on receiving the inbound call connection request, an outbound call connection request to the phone switch (such as the MSC) to establish a second call connection through the phone switch to the target phone. Consequently, an MSC that normally handles such call processing now relies on the ring-back tone generator system to handle call processing and provide a custom ring-back tone service.

Abstract: This invention provides the ability to load balance calls in a communications network using a certain criterion, such as a user-specified call priority, or the call class of service. The method is applied when selecting a route for a new call or for re-balancing the calls across a network. When the user-specified call priority is used, the aggregated number of calls with the same priority or class of service is calculated for all possible routes the new call may use. The aggregated number of calls is then divided by the number of hops in the respective routes; the route with the smallest ratio is selected for the new call. Re-balancing is performed by re-routing the calls in such a way as to obtain a similar number of calls of the same priority, or class of service, along all possible routes.

Abstract: A recovery network may provide communication recovery and backup services to an organization. The recovery network may be communicatively coupled to the existing communication infrastructure of an organization via one or more alternative communication paths. The alternative communication paths may couple the recovery network to the organization independently of a public communication network. Upon activation of recovery services, the recovery network may receive communication requests directed to the organization from the public communication network. The recovery network may service one or more of the requests using one or more of the alternative communication paths. Similarly, the recovery network may service outbound communication requests originating at the organization over an alternative communication path. Communication requests may be backed up (e.g.

Abstract: A method and apparatus for enabling all network elements in a geographically diverse network to advance each call setup message that has not been processed successfully by these network elements to their identical backup network elements to attempt to advance and process the original signaling message are disclosed. In other words, the affected call setup message is advanced to an identical network element that serves as a backup to the original network element in order to advance the call establishment to minimize call failure.

Abstract: A method and apparatus for enabling a signaling message to be sent in response to an emergency call, e.g., an E911 call, set up message to provide information as to whether or not the E911 call has been successfully completed are disclosed. An indicator of a failed call setup will trigger the call to be re-originated transparently to an emergency center where live operators can handle the call on a 24hours/day basis. In one embodiment, an emergency center is a call center that is operated by a network provider or a third party provider to support emergency calls when a PSAP cannot be reached by a caller for various reasons. The emergency center is capable forwarding a call to the appropriate PSAP for call termination on behalf of the E911 caller.

Abstract: The present invention is directed to the recovery of a call signaling channel in connection with a realtime communication established using a packet data network. Specifically, in the event of the failure of an endpoint's current gatekeeper, this invention provides a fast mechanism for searching for an alternate gatekeeper with which the endpoint can re-establish its call signaling channel and hence can regain call service, including call features on existing calls. In accordance with an embodiment of the present invention, a lightweight registration request message is sent on the RAS channel to an alternate gatekeeper in response to the loss of an established call signaling channel, even though a keep alive signal is not then due. The lightweight RRQ message may be sent to individual gatekeepers on an alternate gatekeeper list, until a registration confirmation message is received.

Abstract: In one aspect of the invention, emergency modes of operation for an adapter unit comprising a channel transmitter/receiver unit, a data packet transmitter/receiver unit, and a data insertion/data retrieval unit which inserts signaling data transmitted by the channel receiver unit into data packets and forwards the same to the data packet transmitter unit while retrieving signaling data from the data packets received by the data packet receiver unit and forwarding the same to the channel transmitter unit is provided. The adapter unit especially allows terminals of a branch to be connected in a fail-safe and simple manner to a central telecommunication system.

Abstract: A method of signalling in an AIN, in which in an SSP, the initial message of a new transaction is addressed to a Service Global Title (SGT). The SSP translates that SGT to a first address of the first choice SCP. The SCP responds with an acknowledgement message which has a second address of the SCP as its source address, and includes the Nodal Global Title (NGT) of that SCP. The SSP sends subsequent messages for that transaction addressed to that NGT, and the SSP translates that NGT to the second address of the SCP. When the SCP is taken out of service, the first address is made unavailable, so the SSP sends new initial messages to the second choice SCP, but subsequent messages for existing transactions may still be sent to the second address of the first choice SCP. When all existing transactions have ceased, the SCP is taken out of service.

Abstract: The present invention is a switching system interface providing conversion between time-division multiplexed digital signals and packetized digital signals used to bypass a common control and switch matrix of a class 5 digital switch. The switching system interface includes a network interface for terminating a digital transmission facility that is part of a network architecture. In addition, the interface includes a line/trunk interface, compatible with the internal signals used to operate the line/trunk interface of the class 5 digital switching system and a switch, connected to the network interface and to the line/trunk interface, for routing data between network interfaces and line/trunk interface. The interface also converts the data between time-division multiplexed digital signals and packetized digital signals.

Abstract: A method and apparatus for ensuring that every path in an IP network that interconnects a pair of VoIP network elements comprises diverse network routes and is engineered with adequate bandwidth to support VoIP phone calls are disclosed. In the event that a single point of failure or inadequate bandwidth is detected between a pair of VoIP network elements, an alarm is issued and network engineers are notified to reconfigure the routes between the VoIP network element pair.

Abstract: The preferred embodiments described herein include a system and method for providing a backup-restore solution for active-standby service management systems. In one embodiment, a telecommunication system is disclosed having first and second service management systems (SMS), a storage device shared by the first and second SMSs and circuitry operative to provide backup/restore functionality. This provides system redundancy in that the second SMS can perform the same functions as the first SMS in the event that the first SMS is unavailable due to, for example, system failures, a scheduled maintenance, or an upgrade process. Other embodiments are provided, and each of the embodiments described herein can be used alone or in combination with one another.

Abstract: A voicemail system enabling various components of the voicemail system to be distributed geographically yet operate as a seamlessly integrated system is disclosed. A signal gateway interfaces with a telephone network. In addition, one or more media servers interface with the signal gateway as well as the telephone network. The signal gateway is configured to block calls to malfunctioning media servers. The signal gateway monitors the media servers, and responsive to determining that a media server has malfunctioned, the signal gateway initiates auto-blocking such that the telephone network does not route calls to the malfunctioning media server. In addition, the signal gateway is configured to auto-detect a media server responsive to the media server being initialized. The voicemail system can include a variety of other elements, such as one or more system management units and one or more central data and message store systems.

Abstract: An IP-PBX has a software-based built-in control unit, a card slot into which a control card is plugged, and a data bus connecting the software-based control unit and the card slot. The software-based control unit includes a first management unit managing up to a first number of IP terminals, and an IP terminal registering unit connected to the first management unit and the card slot. The control card includes a second management unit managing up to a second number of IP terminals. The IP terminal registering unit compares a current number of IP terminals managed by the first management unit with the first number when an IP terminal requests communication. The IP terminal has an ID number and an IP address. If the current number is smaller than the first number, the IP terminal registering unit associates the first management unit with the ID number and the IP address, and the first management unit manages the IP terminal.

Abstract: The present invention is directed to the maintenance of call signaling information in connection with realtime communications established using a packet data network. According to the present invention, call state information related to a realtime communication is provided by a call controller to an interconnected client. The client stores the call state information. In the event of a failure of a call signaling channel between the call controller and the client or in the event of a failure of the call controller, the client may establish contact with an alternate call controller, and may provide the call state information that has been stored on the client to the alternate call controller. The alternate call controller may then restore call features associated with the realtime communication.

Abstract: A method of selecting a restoration path in a mesh telecommunication network is disclosed that advantageously is practical and flexible and may be pre-computed along with a service connection path during the setup of the connection. The information used to select the restoration path can be advantageously distributed among nodes in the network.

Abstract: The IP-PBX includes a multimedia gateway controller in which a call control data master table stores call control data for all terminals falling under the control of the IP-PBX. In the event of failure of a PH accommodating IP phones and the like via the LAN, the multimedia gateway controller transfers the contents of the call control data slave table existing on the PH to the call control data slave table on another PH.

Abstract: A method and computer usable medium storing a computer program for performing failed wireless communication diagnostics are disclosed. A failed transmission condition is recognized. A cleared number communication channel is established between a telematics unit and either a service provider or a call center responsive to the received failed transmission condition. A communication device identifier is sent to the service provider. A communication parameter associated with data generated by the service provider is received at the telematics unit.

Abstract: A network telephone system for recovering talk after an unexpected disconnection and a method thereof are used to recover an unexpectedly disconnected talk between network telephones. The network telephone system includes a central processing unit, a talk database, a real-time transport protocol (RTP) buffer, and a network module. A method for recovering talk after an unexpected disconnection includes: recording and storing information of the network telephone in a talk state; judging whether an unexpected disconnection of talk occurs by checking that the network is disconnected or no RTP packet exists; and re-establishing talk by inquiring the network telephone information of a current talk.

Abstract: The present invention is a system and method of combining an emergency standalone switching device with a switching system interface used to bypass the common control and switch matrix of a class 5 digital switch. The emergency standalone switching device provides call control of the switching system interface. The call control of the emergency standalone switching devices provides local and emergency calls to local subscribers.

Abstract: A system for (and a method of) selectively establishing communication with one of plural devices associated with a single telephone number during a disaster or disaster recovery period. In a preferred embodiment, the system includes two wireless connection units, each connected between a respective private branch exchange (PBX) network and a public switched telephone network. Each wireless connection unit preferably serves as a gateway between its respective PBX network and one or more remote communication devices. The wireless connection units replicate each others databases. In the event of a disaster that destroys or renders one of the wireless connect/PBX networks inoperable, telephone calls destined for the inoperable network are seamlessly routed to the operable wireless connect/PBX network. Since the operable wireless connection unit contains information for both networks, inbound, outbound and extension to extension calls for each network can be handled despite the disaster.

Abstract: A voicemail system enabling various components of the voicemail system to be distributed geographically yet operate as a seamlessly integrated system is disclosed. A signal gateway interfaces with a telephone network. In addition, one or more media servers interface with the signal gateway as well as the telephone network. The signal gateway is configured to block calls to malfunctioning media servers. The signal gateway monitors the media servers, and responsive to determining that a media server has malfunctioned, the signal gateway initiates auto-blocking such that the telephone network does not route calls to the malfunctioning media server. In addition, the signal gateway is configured to auto-detect a media server responsive to the media server being initialized. The voicemail system can include a variety of other elements, such as one or more system management units and one or more central data and message store systems.

Abstract: A method of selecting a restoration path in a mesh telecommunication network is disclosed that advantageously is practical and flexible and may be pre-computed along with a service connection path during the setup of the connection. The information used to select the restoration path can be advantageously distributed among nodes in the network.

Abstract: Method and devices are provided for implementing high availability. Some implementations provide high availability for virtual switches of data networks. Each virtual switch acts as a single logical unit, while encompassing at least two physical chassis, referred to herein as a master chassis and a slave chassis. In some preferred embodiments, the active supervisor in the master chassis is configured as an active supervisor of the virtual switch and the active supervisor in the slave chassis is configured as the standby supervisor of the virtual switch.

Abstract: The disclosure relates generally to a system of restoring communication circuits. The system includes an automated circuit switchover system embedded within a telephone central office, a technician terminal for use by telephone network operations personnel, a test and control system coupled to the technician terminal and to the automated circuit switchover system within the telephone central office, and a switchable protection circuit remotely located from the telephone central office and coupled to the telephone central office via a communication link. The switchable protection circuit supports a plurality of active individual communication lines and an unused spare communication line. Each of the active individual communication lines are configured to support communication of traffic from end user subscribers supported by the active individual communications lines connected to the switchable protection circuit and to the telephone central office.

Abstract: Disclosed is a communications network element that is capable of routing signaling messages and includes a dynamic routing key registration feature which allows Internet protocol (IP) nodes to automatically register/de-register and subsequently direct traffic towards or away from themselves without the need for manual operator intervention. A signaling gateway routing node includes a self-registering data communication module (sDCM) that is adapted to receive and process dynamic routing key registration messages from associated IP nodes. Such dynamic routing key registration messages may include information that is used to register a new routing key association with a TCP/IP connection, de-register an existing routing key association with the TCP/IP connection, or modify routing key information associated with the TCP/IP connection.

Abstract: A method and apparatus are provided for the management of multiple-node networks to provide for efficient and rapid determination of an alternative connection path through the network to avoid a fault in the connection path. The present invention seeks to minimize the number of nodes affected by the alternative connection path by systematically seeking alternative, non-retracing connection paths from nodes neighboring the connection fault. Until an alternative connection is found, searches are conducted from nodes further from the connection fault. Optionally, the present invention may use a retracing path to establish a connection.

Abstract: A method and system for selecting a Multimedia Resource Function Controller (MRFC) for allocating resources for a conference call based on a pre-defined condition. In a first embodiment, the condition is associated with a status of an MRFC of a first network, such as an overload of resources, a failure, or an inexistence of the MRFC in the first network. When the condition is detected, an application server (AS) of the first network delegates the responsibility of allocating the resources for the conference call to an MRFC of a second network. In a second embodiment, the pre-defined condition is associated with a location of a User Equipment (UE) involved in the conference call. Based on the UE's location, the AS of the first network selects an MRFC of a second network, and delegates the responsibility of allocating the resources for the conference call to the MRFC of the second network.

Abstract: A method of selecting a restoration path in a mesh telecommunication network is disclosed that advantageously is practical and flexible and may be pre-computed along with a service connection path during the setup of the connection. The information used to select the restoration path can be advantageously distributed among nodes in the network.

Abstract: IP-PBXs having different structure, for example, stand-by and active transmission lines are connected between unused pins of the interface block 24A and 24B to supply the relay driving signal from the switching block 20A to the switching block 20B according to a control signal from the control block 18, and change the transmission lines, and maintain a direct route.

Abstract: Software defined radios necessitate the routing of analog wireless signals between data links via a software circuit switching router implemented in a processor. Processor utilization by the software router is decreased by disabling the interrupts of all but one analog channel per communication link, this channel being termed the Anchor channel for its link. Data from all channels in the link is transferred during the Anchor link's interrupt. The increase in the Anchor channel's interrupt latency due to transferring data from other channels is more than offset by the overall reduction in the number of processor interrupts generated. As a result, utilization of the processor by the software router is reduced, allowing the processor to manage other time-critical tasks and/or a greater number of tasks in a given time period.

Abstract: In a telecommunications system a data function and a date control function are replicated in a plurality of databases (50, 51, 52, 53, 54). In order to synchronize updating of the databases (50, 51, 52, 53, 54), one database is identified as a primary database (50), at least one is identified as a primary standby database (51), and the others identified as secondary databases (52, 53, 54). Then, in normal operation, the data control function of the primary database (50) is arranged to generate signals for synchronized updating of the other databases. In the event of a failure of the primary database, the or a standby primary database (51) takes over the up-grading operating. Tee present invention is particularly, but not exclusively, directed to a telecommunications system for mobile telephones.

Abstract: In a telecommunications network which comprises an Intelligent Network (IN), Call-Gapping is implemented in a call control function (CCF), so that calls are selectively discarded automatically in order to reduce the load on the IN. As the CCF is the point at which an incoming call is first recognized as an IN call, this arrangement reduces processing resources consumed by discarded calls and also provides for a faster IN call rejection response.

Abstract: The invention specifies an information center (CC) in a telecommunication network and a method for operating said information center, where the information center (CC) is connected to an exchange (VST) and comprises both a mainframe (CTI), connected to the exchange (VST), and at least one information desk (AP) having at least one telecommunication terminal. The basic functions for operating the information center (CC) can be performed by a plurality of elements of the information center (CC), so that the failure of individual elements cannot result in the failure of the entire information center (CC). These include, firstly, call distribution, which can be performed both by the mainframe (CTI) and by the exchange (VST) itself, and secondly duplication of the telecommunication terminals, including the necessary data transfer paths.

Abstract: A controller that monitors usage status of trunk lines associated with a switch that operates to handle call connections between calling devices and called devices on trunk lines associated therewith. An exemplary controller comprises N call application nodes capable of executing trunk idle list server applications that allocate ones of the trunk lines to the call connections, wherein a first trunk idle list server application is executed on a first call application node and is associated with a second trunk idle list server application executed on a separate second call application node.

Abstract: A method of rerouting a digital intra-office signal through a telephone central office comprises the steps of retrieving identification data for ports of first and second digital access and cross-connect systems, the ports being connected by an intra-office digital trunk, retrieving identification data for an alternative path from the first cross-connect system to the second cross-connect system, correlating identification data for the alternative path to the identification data for the intra-office digital trunk, determining availability of and displaying alternative path data responsive to entry of identification data for the intra-office digital trunk, and rerouting the intra-office digital signal via the alternative path.

Abstract: The present invention concerns an exchange control method, wherein an old host exchange accommodating a remote switch unit or subscribers is adapted to be accommodated in a new host exchange, and its object is to allow call processing control to be performed by the new host exchange while making effective use of the resources of the old host exchange including the remote switch unit. The new host exchange and the old host exchange are connected in an interoffice configuration by a signaling link, and each exchange includes an emulation processor; the old host exchange and the new host exchange perform message editing and exchange between the respective emulation processors, and exchange control is performed in such a manner that when there occurs data or a request for basic control that is normally processed at the old host exchange, the data or request is transferred to the new host exchange, and the new host exchange processes the data or request and sends a notification to the old host exchange.

Abstract: The invention relates to a circuit for supplying power to a network termination unit (55) of a message transmission system, which is connected to a central station via a subscriber line (30). A local power supply voltage source (41), which is arranged in the network termination unit (55) and which supplies power during a normal operating state, is provided as well as a remote power supply source, which is arranged in the central station and which supplies power during an emergency operating state in the case of a failure or malfunctioning of the local power supply voltage source (41). The network termination unit (55) comprises a direct current converter with a transformer and a clocked switch (20). The primary winding (1) of the transformer is connected via the clocked switch (20) to the local power supply voltage source (41), and a connection of the primary winding (1) is connected via a first controllable switch (5) to a wire of the subscriber line (30).

Abstract: A method of rerouting telephone calls directed to a private branch exchange (PBX) located at a first site to a second site wherein the PBX has at least one nonfunctional routing number is provided. The method includes providing a corporate long distance telephone system, providing a telephone hunt group, programming a plurality of routing numbers assigned to the first site PBX such that calls directed to the first site PBX are routed through the corporate long distance telephone system to the telephone hunt group, programming the hunt group to forward calls to a dedicated long distance telephone system, and programming the dedicated long distance telephone system to route calls to at least one of an alternate PBX and a dedicated wireless telephone system located at the second site.

Abstract: For establishing a protected communication segment between two network elements of a telecommunication network, a protected connection and a protecting connection must be set up. For this purpose, first cross connections carrying the communication traffic for the protected connection and second cross connections protecting the respective first cross connection for the protecting connection are established between corresponding termination points within these network elements, whereby this occurs in each network element independently of the respectively other network element.

Abstract: The present invention relates to a process, an exchange (SW1), a charge computer (BS1), a charge billing computer (BC) and a program module in each case for an exchange (SW1), for a charge computer (BS1) and for a charge billing computer (BC) for the processing of charge data. A first exchange (SW1) sends first charge source data for telecommunications services to a charge computer (BS1) which converts the first charge source data into first charge billing data detectable by a charge billing computer (BC). The charge computer (BS1) sends the first charge billing data to the charge billing computer (BC).

Abstract: In a computer integrated telephony call center where an adjunct host (160) normally controls enqueuing of calls (168) in call queues (120) of an ACD system (101) and corresponding call queues (120′) of the adjunct host and assigning of the enqueued calls to agents, the ACD system assumes (604) control over its call queues upon loss of the control by the adjunct host (e.g., upon failure (600) of the adjunct host). The ACD system flags (602, 606) all calls that are enqueued at the time of loss of the adjunct host control as well as all calls that the ACD subsequently enqueues as being under ACD system control. When the adjunct host regains its control ability, the ACD system stops flagging new calls, call queues of the host processor are cleared (702), and the adjunct host regains control (722) of enqueuing calls in call queues of the ACD and the adjunct host.

Abstract: A PBX (3-a) detected an incoming call arrived at a line trunk (2-a) via a public line network (1), and at the same time, an ACDP (4-a) queues an incoming call arrived in an incoming sequence queue (8-a). In addition, the ACDP (4-a) scans a distribution sequence queue (9-a), and controls an incoming call to be distributed to an extension line that seems to be the most preferable in the extension line group (6-a). On the other hand, an incoming call arrived at the line trunk (2-b) via the public line network (1) is detected by the PBX (3-b) via a leased communication line (7). At the same time, the ACDP (4-b) queues an incoming call in the incoming sequence queue of the extension line group (6-b). In addition, the ACDP (4-b) scans a distribution queue (9-b), and controls the queued incoming call to be distributed to an optimal extension line belong to the extension line group (6-b).

Abstract: The system automatically generates electronic commands necessary to modify or provision different types of program control switches as may be included in a public switch telephone network. A data schema and organization of tables and data structures provide for command generation for each of the different switch types. Additionally, a self-modifying dynamic data structure is used as a common area to communicate information between various programs and formulate the commands due to a limited number of parameters used to communicate information between programs that generate the command for the switches. A technique for verifying switch commands automatically generated by a second new provisioning system is described. A technique is described for automatically extracting switch specific commands and options as generated by a first system for use in populating data stores used in a second system for command generation.

Abstract: The method and device carry out communication between a settop box and a target network through nay of a number of head ends. When a connectivity between the settop box and the target network through a first head end is lost, a call is initiated over a wireless communication link. A second, alternative, head end is selected based on the settop box, the first head end and the target network. Subsequently, the settop box is coupled through the second head end to the target network.