Abstract: A system for providing a backup network is disclosed that includes a glare detection circuit, an arbitration circuit, and a line control circuit. The glare detection circuit receives a dial signal associated with the call control circuit and a cause value from a backup circuit, and asserts a glare present signal responsive to the dial signal and the cause value being asserted. The arbitration circuit receives the glare present signal and produces an arbitration signal responsive to an arbitration procedure. The line control circuit receives the arbitration signal and determines whether the call control circuit will discontinue an outgoing call on the backup circuit and wait a specified period of time for an incoming call on the backup circuit or wait for the outgoing call on the backup circuit to be answered. Methods and other systems are also provided.

Abstract: A method is disclosed for redirecting calls more efficiently, whereby an LDAP query is encoded with a called telephone number. The LDAP query is transmitted from a TCP/IP to an LDAP server via an IP network, and the TCP/IP awaits a response back from the LDAP server, which response identifies a corrected destination address, and may include translated digits which may be used in telephony routing.

Abstract: A system for service control and operations for a telecommunications network. In particular, an architecture and method for a service control and operations element system. The system communicates with a plurality of interconnected telecommunications network elements via a switching and signaling subsystem. The system provides and controls the various functions of the telecommunications network, such as call processing and routing, automatic fault detection and correction, providing services to customers in an interactive manner, fraud detection and control, identification of patterns of abuse of the network, collecting data regarding call activity at each network element, and producing a record of each call placed within the network.

Abstract: The invention relates to a method and a device for adapting different signalling protocols in fixed telephone networks and/or mobile radio networks (N1, N2). According to the invention, networks of various carries are connected together via a gateway (10) as opposed to an international gateway exchange (12).

Abstract: A method and system for correlating information retrieved from a data network, with a telephone call initiated by an initial address message (IAM) at a multi-line facility, such as a call center or a voice access server (VAS), hinges on extracting an identifier string inserted into the user-user-interface field of the IAM, and accompanying the information. The information is used to perform an enhanced service feature which may include aiding the selection of an internal line at call center's call distributor, or the selection and customization of delivery of a service feature, at a VAS. The information may also be displayed at a display terminal associated with a call center agent handling the call.

Abstract: A telephone session between a calling person and a called person uses a call-related information segment which has been prepared by the calling person to inform the called person of the calling person and the subject of the session. The call-related information is transmitted to the called person and outputted there by use of an output unit, alerting the called person of the nature of the telephone session without the called person entering into the telephone session.

Abstract: The invention concerns a method for controlling the setting-up of a communication connection by a communication network (TELENET), as well as a service unit for implementing the method. During the call set-up a service request message (SR) for requesting an IN service is transmitted to a network server (SCP1 to SCP3) if the communication connection that is to be set up fulfils predetermined trigger conditions. The service request message (SR) transmitted to the network server (SCP1 to SCP3) is classified by a service unit (SSP; LLIN) as essential or non-essential. The operability of the network server is monitored by the service unit (SSP; LLIN).

Abstract: The invention refers to a method and an arrangement for netwide call trace with various interfaces and protocol stacks of at least one call within a telecommunication network by using a central call trace server (CS) and local intelligent call trace intelligent agents (IA) between the switching points (SP) of the telecommunication network, said central call trace server being connected with all of said local intelligent call trace intelligent agents IA. The central server manages the intelligent agents and distributes information between the intelligent agents. Only a reduced set of necessary data are sent to the central server by the intelligent agents, in case that the central server requires more data this data are sent by the intelligent agents upon request of the central server. The method and the arrangement allows an exact call trace inclusive of wild cards and calls between different telephone networks (mobile/land).

Abstract: Systems and techniques are provided for supporting multi-party meetings over a telecommunication network. In one implementation, meeting status information may be provided to a client for display on a user interface. The meeting may involve a voice connection between the parties that is established over a Signaling System 7 (SS7) network. Status change information may be received over the SS7 network, and the status change information may be forwarded to the client for updating the user interface display. Other implementations may involve receiving a meeting group identifier via a signaling network and retrieving routing numbers associated with the meeting group identifier. Calls can be initiated using each of the routing numbers, and the calls may be connected together to establish a conference call.

Abstract: A method and apparatus for providing a network signaling method. More particularly, the present invention relates to providing basic POTS (Plain Old Telephone System) telephony between a Customer Premise Equipment (CPE) device and a Central Office (CO) device. The present invention also optimizes bandwidth of voice samples over AAL2 while supporting voice compression.

Abstract: A method of providing telephony services can include receiving a request to query a subscriber information data store to determine service description information for a call. The service description information can specify at least one telephony service associated with a subscriber for use in processing the call. The method further can include querying the subscriber information data store to determine the service description information, receiving the service description information from the subscriber information data store, and providing the service description information to a telephony service node to implement a telephony service specified by the service description information with respect to the call.

Abstract: Methods and systems for defining and distributing network data collection rule sets and for filtering messages using the rule sets are disclosed. Message-based filter criteria are automatically deduced from CDR-based filter criteria and downloaded to site collectors. The site collectors implement rule changes on-the-fly using a table-driven system. The message-based rule sets downloaded to the site collectors are supersets of the messages required by multiple different network monitoring applications. As a result, non-redundant, multi-application data streams are sent across the service provider's internal network, resulting in efficient bandwidth utilization.

Abstract: The present invention relates to a signaling method and network element for a virtual private network, wherein a destination capability is determined in response to the receipt of a connection request from a subscriber belonging to the virtual private network. Based on the determination result, an initiation of a virtual private network signaling in the call set-up is decided. Thereby, the signaling load can be reduced already in the originating point if the destination is not able to support the signaling required for the virtual private network. The capability determination may be based on a private numbering plan required for a number translation in the telecommunication network.

Abstract: Within a network environment, redundant capabilities for exchanging call-processing signals enhance reliability of telephony support for telephony endpoint devices. A data network, such as a telephony-over-local area network, provides primary support for the telephony endpoint devices, which may be telephony-enabled computers or Internet Protocol telephones. A second network has a first mode in which it is inactive with respect to telephony traffic to the telephony endpoint devices, but has a second mode in which call-processing signals are routed through the second network in response to a determination that the data network is disabled. As a result, telephone features such as call deflection may be continued when the primary support is disabled.

Abstract: A method for creating a telephone digital switching platform to provide conversion and routing of telephone calls arriving on a number of telephony interfaces to a number of outbound telephony interfaces, based on in parameter and out of parameter call setup information. Receiving and transmitting interfaces can include, but are not limited to, Integrated Services Digital Network (“ISDN”), Digital Transmission Carrier System (“T-1”), DID (“Direct Inward Dial”), Loop Start, (“E & M”) and Direct Outward Dial (“DOD”). Conversion and routing is performed by the steps of capture of call setup information, conversion to “dial number” via database lookup, selection of outbound pathway based on database information, and placement of outbound call and switched connection to inbound call.

Abstract: A method for switching between two communication links present between two communication systems. A first and a second communication system are connected through a first link which uses a first communication network and through a second link which uses a second communication network. These two links each include a transmitting channel and a receiving channel that are used for data transmission by the communication systems. The first link is switched into the second link by switching between the transmitting channel and the receiving channel of the two communication systems.

Abstract: A method of negotiating a call capability between signalling points in a telecommunications system. The method comprises sending a capability preference or prioritised list of preferences from an originating signalling point to a terminating signalling point or signalling transfer point, at the Call Control level. A capability acceptance is returned from the terminating signalling point or signalling transfer point to the originating signalling point at the Call Control level, if the terminating signalling point or signalling transfer point accepts a preference sent by the originating signalling point.

Abstract: An interface engine that is communicatively connected to a packet-switched network and to a legacy circuit-switched network uses a call processing protocol, such as the session initiation protocol (SIP), for packet-switched network communications and uses a legacy signaling protocol, such as IS-41, for legacy circuit-switched communications. In response to a registration request initiated by a subscriber device on the packet-switched network, the interface engine obtains a service profile for the subscriber from a call processing system, such as a home location register (HLR), of the legacy circuit-switched network. Service parameters derived from the service profile and stored in a service database may be used to apply services on the packet-switched network for the subscriber device.

Abstract: Existing switch markings for telephone numbers are mechanically manipulated via the Recent Change channel to provide an appropriate treatment. In case a call to a vacant pooled-in number cannot be completed, a terminating switch, instead of generating a REL message with a Cause Code 26 and tearing down the call, connects the call to an Operations Support System that provides a predetermined announcement to a calling party. Calls directed toward numbers that are ported-out are placed on a Machine Intercept, which results in sending a cause code 26 to an originating switch.

Abstract: Methods and systems for distributing signaling messages among multiple processors for stateful processing and/or sequenced processing of the messages on a per sequence basis are disclosed. A signaling message is received and it is determined whether the signaling message requires stateful and/or sequenced processing. If the signaling message requires stateful and/or sequenced processing, a sequence identifier is computed for the signaling message. The sequence identifier is unique on a per sequence basis. The sequence identifier is then used to distribute the signaling message to an application processor for stateful and/or sequenced processing.

Abstract: The invention relates to a method and system for ensuring a PSTN protocol restart procedure as defined by the V5 standard after a failure of a first data link carrying PSTN protocol signalling messages. In the method, a first time-out (TC3) for starting the restart process is observed and, if the time-out has tripped, the restart procedure is started by sending a start message using a Control protocol signalling message consistent with the V5 standard. According to the invention, after the first data link carrying the PSTN protocol has been restored to working order, a check is carried out to establish whether a second data link intended to carry Control protocol signalling messages is in order, and this check is repeated until the second data link intended to carry Control protocol signalling messages is in order, and when the second data link is in order, a message for starting the PSTN protocol restart procedure is sent in the Control protocol.

Abstract: Network architecture for establishing telephony connection, including a call management node, a first network node connected to the call management node via a first signaling link, and further connected to at least one first node telephony subscriber, a second network node connected to the call management node via a second signaling link, to the first network node via at least one voice link, and further connected to at least one second node telephony subscriber.

Abstract: A method of AIN query redirection is performed by a first SCP in a telecommunication network. The first SCP receives a query from an originating SSP and determines that a second SCP should service the query. The query is then populated with information from the originating SSP as well as appropriate routing information to send the query to a second SCP where a response is generated by the second SCP. The query response is sent back from the second SCP to the originating SSP without passing through the first SCP.

Abstract: A method that alleviates congestion problems in prior art networks by insuring that selected classes of calls have a reserved capacity, thus insuring a capability to service at least the selected level of traffic. In an illustrated embodiment, a selected capacity is reserved for voice calls, in contrast to data calls. When a connection request is made and there is unoccupied capacity, a voice call is always serviced, but a data call is serviced only if the number of established data connections is less than capacity of the path required for establishing a connection for the request, minus the capacity reserved for voice call.

Abstract: An integrated wireless and wireline telecommunication switch. The switch includes peripheral modules having both wireless and wireline peripheral devices. The switch also includes wireless and wireline software load. An aspect table allows the wireless and wireline software load within the switch to be executed within a single call without creating direct dependencies on each other. The switch allows new and more efficient connections between wireless and wireline subscribers. In many cases wireless and wireline subscribers having direct access to the switch can connect without using any other switches in the network.

Abstract: A communication hub for providing continuity testing and call tones in communication networks. The communication hub comprises a processor coupled to an interface and a tone generator. The processor is configured to process an in-band call tone request message to generate a continuity acknowledgment message and to direct the tone generator to provide call tones to a call device. The tone generator is configured to generate the call tones for the processor. The interface is configured to receive the call tone request message and transmit the continuity acknowledgment message and the call tones for the processor.

Abstract: The invention essentially comprises of a router and adaptor enabling to receive any type of vendor Intelligent Network protocol message, then to direct the message (according to predefined rules) and ultimately, to translate one type of message into a unified format in order to meet with the destination protocol requirements.

Abstract: The present invention discloses an automated system for retrieving, delivering and modifying subscriber line settings through requests from a maintenance technician to a telephone service provider's (“telco's”) systems. The system and method disclosed utilizes standard AIN queries, call setup messages and information delivery services thereby avoiding the need to use a terminal interface into the telco's systems. The technician enters data in response to prompts from a service node communicating with the technician via a telephone call. The service node sends the technician's request to a service control point which forwards the call to the switch serving the subscriber's line to be analyzed or modified. The switch responds to instructions provided by the service control point to effectuate the technician's request and sends the results to a telephone line designated by the technician.

Abstract: In a telecommunications network having switching points (such as SSPs and/or MSCs) controlled by a control point (such as an SCP), the switching points are provisioned to send messages to the control point when they encounter trigger conditions during processing of a call to a called station that has a forward-to number. When the control point receives the messages, it determines whether a loop condition exists, i.e., whether the call has already been forwarded from the forward-to number. If the control point determines that a loop condition exists, the control point instructs the switching point so as not to forward the call to the forward-to number.

Abstract: The present invention provides a Universal Signaling Point (USP) that acts as a liaison between a call signaling network and a number of switching entities, which support lines, trunks, or a combination thereof. During a transition of the lines or trunks from a donor entity to a host entity, call signaling between the host and donor entities and the SS7 network is routed through the USP. When transitioning the lines or trunks from the donor entity to the host entity, call signaling messages intended for the donor entity are routed to either the donor or host entity, whichever actually supports the lines or trunks. The USP is provided information indicative of whether a line or trunk has been transitioned to the host entity. The USP can compare information provided in the call signaling message with the transition information and route the message to the appropriate donor or host entity.

Abstract: In a communications network that provides services to a plurality of users, events occurring during service processing are accumulated in an event record and sent to a record processor to perform post-processing, such as assessing charges to be billed to users of the network. Each service processing node in the communications network accumulates event records, bundles them with instructions as to how they are be processed, and dispatches them to one or more record processors. Before being sent to a record processor, an event record is augmented with instructions describing how to perform processing upon the events in the event record. The record processors are general-purpose processors and the instructions for post-processing are carried within the event records themselves. Post-processors are no longer required to be dedicated to a particular purpose such as billing computation.

Abstract: The invention concerns a method and a system for implementing a centralized intermediary service in a telecommunication system comprising a telephone network, which comprises one or more telephone exchanges; a private numbering plan provided in the telephone network; a telephone exchange belonging to the telephone network and implementing the private numbering plan; and an intermediary. In the method, one or more virtual private networks are established in the telecommunication system and the private numbering plan established is used for internal calls within the virtual private network. Further, the intermediary is connected to the telephone exchange; and the signalling of the virtual private network is used for the production of intermediary services. The signalling used for the production of intermediary services is e.g. QSIG signalling.

Abstract: A method of creating a page usage record is provided. An input signal is received. A page usage record is created in response to the input signal. An event jacket is created. The event jacket is associated with the page usage record. A request to send a page is received. A confirmation signal is received after the page has been sent. Finally, a page leg jacket is created. The page leg jacket includes at least one record. The at least one record includes information relating to the page.

Abstract: A method and system of managing virtual circuits for improved non-blocking fault tolerance in a multi-node virtual circuit network of resources is presented. On receiving a request for connection between two nodes in the multi-node network, a virtual circuit with a plurality of virtual circuit channels is set up between the two nodes. Each node may have more than one physical link equipped to it. Furthermore, the virtual circuit channel may be disconnected when there is no traffic between the nodes. A method for handling virtual circuit channel allocation and de-allocation that prevents conflicts in reuse of the channels before they are released by both nodes in the connection is also presented. A protocol to prevent race conditions between the nodes is also established providing improved bandwidth utilization in the multi-node network.

Abstract: A method and apparatus for reducing overload conditions of a node of communication system is disclosed. One or more pairs of predefined upper and lower overload threshold values are stored. A rejection proportion value is stored in association with each of the pairs of overload threshold values. Messages arrive at the node and are processed by it. The current processing load or saturation level of the node is continuously measured in real time. The current saturation level is associated with one of the predefined pairs of overload threshold values. The node rejects a number of messages equal to the rejection proportion value that is associated with the overload threshold values that correspond to the current saturation level. Preferably, only call initialization messages, such as call setup messages or initial address messages, are rejected.

Abstract: A private branch exchange comprising means, including at least an extension terminal, for connecting the extension terminal to a communication network, means for transmitting to the communication network a call including information relating to a caller number, when a transmission call is made from the extension terminal, means for sending, when a call is received from the communication network and the call includes information on a number, the call to the extension terminal corresponding to the called number, memory means for storing information on a predetermined number which is preconfirmed to function as a called number for callback, determination means for determining, when a call has been received from the extension terminal, whether or not the predetermined number is obtained, which corresponds to a caller number received from the extension terminal or a caller number corresponding to the extension number, with use of the information stored in the memory means, and means for employing, when the acquisi

Abstract: A node (2) and a local exchange (1) communicate with each other over a V5.2 interface created in response to instructions prepared by a computer (22). The method of preparing the instructions involves the steps of allocating identification data to the signal means linking the node and the local exchange so as to enable the latter to determine the identity of the node communicating over the signal link, specifying which C channels are to be transmitted along the signal link means, and, for each specified channel, specifying the C paths, i.e. the type of telecommunications traffic, to be carried thereby.

Abstract: A communication system determines a cell substitution method based on information for a call to improve call quality. The communication system receives information for the call. The communication system then determines the cell substitution method based on the information. The communication system generates an instruction to use the cell substitution method for the call. The communication system advantageously uses an optimal cell substitution method for each different type of call. The communication system uses the optimal cell substitution method when a cell is lost or misinserted.

Abstract: Methods and systems for providing enhanced network security for network management messages and subsystem management messages are disclosed. A network security function receives a network or subsystem management message from a first location in a network. The network security function determines whether one or more predetermined parameters in the network management message are not associated with the originating location. In response to determining that are not associated with the originating location, a network security action, such as discarding the message and/or notifying a network operator, is performed.

Abstract: An operating system independent distributed self-contained dynamic logic system is disclosed. The dynamic logic system enables EO functionality in small edge routers or programmable switches which serve a small population of users instead of the rather large population typically served by a 5ESS or DSM100 central office switch. A disclosed method provides the capability for EO switch enhanced functionality that is programmable from a remote location The dynamic logic system may be implemented across several elements, including a subscriber database called a Service Control Point (SCP), a computer called a Service Management Point (SMP) for controlling and distributing programmable logic to implement EO features, and an Edge Switching Point (ESP) for interacting with a physical device (telephone/data endpoint). The dynamic logic system may be introduced at the “intercept” layer between the physical edge switching point device, typically a telephone interface, and a routing network.

Abstract: A system establishes a telephone call between a calling party and a called party. The system receives a telephone call connection request, including identification of the called party, from the calling party and determines, based on the identification information, if the called party is currently connected to a data network. If the called party is currently connected to the data network, the system establishes the telephone call between the calling party and an instant messaging client of the called party.

Abstract: An SCP Location Register service (“SLR service”) for redirecting certain DP2 and DP3 traffic to the appropriate SCP in a multi-SCP IN architecture is described. In a preferred embodiment, the SLR service of the present invention is implemented on one or more SCPs in an IN comprising multiple SCPs. In one aspect, the SLR service redirects DP3 Account Management Service queries to the correct SCP without prompting twice for the MSISDN of interest. In this aspect, the SLR prompts for and collects the MSISDN of the subscriber, maps the MSISDN to the SCP Access Code (“SAC”), prepends the SAC digits to the called number, and returns a CONNECT message to the querying MSC with the new called number in a Called Number field and the collected MSISDN in a Redirecting Party ID field. In another aspect, the SLR service redirects DP2 Origination Traffic to the correct SCP in the same manner, except that it need not prompt for or collect the MSISDN.

Abstract: A method of transferring signalling information from an SS7 network to an IP network using SIP signalling through a Media Gateway Controller (MGC), the method comprising receiving an Initial Address Message (IAM) from the circuit switched network at the MGC, and generating a SIP set-up message at the MGC, wherein the SIP set-up message includes a loop protection field containing a hop counter or redirection counter in the IAM.

Abstract: A method and apparatus in which specific properties of individual signalling links in a signalling network are utilized without all signalling link sets having to have these specific properties. A fixed allocation is provided between a signalling link having the specific properties and a specific value of the signalling a signalling message.

Abstract: The invention provides a call center communication system to handle calls to a call center by obtaining absolute address for a call center resource from a call center resource processor prior to directing the call to the call center resource. The invention includes a first communication system that receives and processes the initial signal to select a call center resource processor and generates and transmits an address query for the call center resource processor. After receiving an address response including an absolute address for the call, the first communication system processes the address response to generate route information to cause a second communication system to route the call to a call center resource in call packets containing the absolute address. The first communication system transmits the route information including the absolute address for the second communication system.

Abstract: A method and an apparatus are provided for the secured provision of functions of a signaling network for distributed telecommunication applications. An application logic of a telecommunication network is separated from system components that are relevant to security by setting up the former on decentralized apparatuses of the communication network and the latter on central apparatuses of the communication network. Suitable communication measures between central and decentralized apparatuses ensure that centrally available functions can be called from an application logic which is implemented in a decentralized manner. Security functions for protecting the signaling network and/or a central apparatus are set up or utilized on central apparatuses.

Abstract: In a system having a switching device in a first location, and an extending device in a second location, a method of providing a communications link between (i) a first phone associated with the extending device and (ii) a second phone local to the second location and not associated with the extending device includes analyzing parameters associated with the first phone and the second phone so as to determine that the first phone and the second phone are local to the second location. The method further includes separating signaling data associated with the communications link from voice traffic associated with the communications link. The method further includes directing the signaling data through the switching device via an extension link between the switching device and the extending device, and directing the voice traffic between the first phone and the second phone.

Abstract: A method of signalling in a telecommunications network comprises generating signalling messages at an Application Part or a User part of an originating signalling point, the messages having a maximum length of 272 octets. The generated signaling messages are transferred to a Message Transfer Part layer 3 (MTP3) of the originating signalling point, and on the basis of the destination signalling point of the received signalling message, it is determined whether or not the message is to be transmitted over an NNI-SAAL signalling link. If the message is to be transmitted over an NNI-SAAL signalling link, the message is transferred to an NNI-SAAL part of the originating signalling point. If the message is not to be transmitted over an NNI-SAAL signalling link, the message is transferred to an MTP2 part of the originating point.

Abstract: Computer integrated telecommunication systems are disclosed that provide a message exchange interface that transfers data and control requests generated by applications running on a computer system directly to a telecommunications unit that is adapted to respond to the data and control requests generated by these application programs. In particular, PBX systems are disclosed that include message exchange interfaces that provide fault tolerant operation and that directly map application programs running on a computer system into the controller element of the PBX system. Further systems are disclosed that provide message exchange interfaces that allow the efficient transfer of audio signals between a computer system and a telecommunication unit.

Abstract: A method of negotiating a call capability between signalling points in a telecommunications system. The method comprises sending a capability preference or prioritised list of preferences from an originating signalling point to a terminating signalling point or signalling transfer point, at the Call Control level. A capability acceptance is returned from the terminating signalling point or signalling transfer point to the originating signalling point at the Call Control level, if the terminating signalling point or signalling transfer point accepts a preference sent by the originating signalling point.