Abstract: In a telecommunications network, a communication channel identifier agent (CCIA) is employed to identify communication channels. The CCIA directs the ISUP layer residing on a node to create Interface Identifiers (IntfIDs). The IntfIDs may contain an originating point code and a network identifier. The IntfIDs allow a node to use more than one originating point code to identify itself to other nodes in the telecommunications network. The IntfIDs are combined with circuit identification codes to identify communication channels between nodes in the telecommunications network.

Abstract: A method for providing communication control functionality at a remotely located site using a distributed feature architecture which provides communication features and data records to an Enhanced Network User (ENU). The ENU connects to a Distributed Feature Network (DFN) in order to gain access to communications features contained in the DFN. Based on the type of communication requested, one or more feature boxes are created in order to implement the requested communication.

Abstract: For communications interface across the line of demarcation between the customer premises media and a link of a public digital broadband communication network, a network interface device is “soft” in that it is adaptable to different service applications and readily programmable from both the network-side and the customer-side. A network-side interface provides a communications connection to a broadband network link at an edge of the digital broadband network. A customer-side interface provides communications connection to one or more media in the customer premises, for example, to telephone and LAN wiring within the premises. The soft network interface device also includes a data processing system, for controlling at least some of the communications through the interfaces. The data processing system is capable of being programmed with network service provisioning data from the public network as well as with user programming received from the customer premises.

Abstract: A method for providing local number portability between subscriber lines served by a distributed switch call manager (DSCM) involves updating translation tables of the DSCM to direct call control messages to a media gateway (MG) that serves the ported number. The service features and service feature profile of the ported subscriber are ported concurrently with the directory number, without re-provisioning.

Abstract: A telephone system for undetected provision of an auxiliary service during a telephone conversation between at least two participants over a communications network. The system includes a handset, having an input mechanism operable by a requesting participant to submit a request for an auxiliary service to be provided during the conversation, and a service processor, adapted to receive the request over the network and to provide the requested auxiliary service responsive to the request, such that at least one of the other participants receives substantially no indication of the request.

Abstract: Data is mapped between an advanced intelligent network (AIN) protocol message and an integrated services digital network (ISDN) protocol message for use by an intelligent network telecommunications system components. At a service control point, an AIN message is populated in an AIN protocol format with data required for providing a call handling service. The AIN message is routed to a switch associated with a service node. At the switch associated with the service node, an ISDN message is populated according to an ISDN protocol format with the data from the AIN message. If any data from any data field of the AIN message does not correspond to a matching data field of the ISDN message, a data field of the ISDN message is selected for populating with any data that does not correspond to a matching data field of the ISDN message. The ISDN message is routed to the service node that extracts the data from each data field of the ISDN message for providing the call handling service.

Abstract: A virtual private network includes an internet protocol (IP) network and a public switched telephone network (PSTN). An enterprise gateway is operably connected to the IP network. The enterprise gateway is operably connected to a switch of the PSTN through a direct access line (DAL). The set-up signaling for virtual private network calls and the calls themselves are transported across the internet protocol network and the public switched telephone network through the direct access line.

Abstract: A method for transferring a message in a message transfer part with high speed is disclosed. Distinctive features of the invention include the generation of an access key table that stores information regarding the status of a destination point, to which a message is intended to be sent, and the transmission of the message pursuant to the status of the destination point contained in the access key table.

Abstract: In a communication network where a subscriber is connected to switches in an originating carrier communications are routed to and/or from the subscriber via at least one communications carrier selected from a plurality of possible communications carriers. Communications control signals associated with outgoing and/or incoming communications are received from the switch at a controller external to the originating carrier. The communications control signals are processed at the controller in dependence upon directions from a third party using information on communications costs for each of the possible communications carriers to select at least one communications carrier for routing communications based on the information on communications cost to generate process communications control signals for routing the communications in accordance with the selection.

Abstract: A high-capacity electronic switching system includes two or more first stage switch modules to each of which one or more subscriber terminals (telephone sets, fax machines, personal computers, etc.) are connected and each of which executes signal switching for signals from/to the subscriber terminals, and a second stage switch module for switching signals between the first stage switch modules. In the high-capacity electronic switching system, each of the first stage switch modules is connected to another one of the first stage switch modules via a special-purpose link for setting a communication link between the first stage switch modules when necessary. For example, the setting of the communication link via the special-purpose link is executed when an abnormal condition of the second stage switch module occurred and normal communication link setting between two first stage switch modules via the second stage switch module is impossible.

Abstract: An interface means between a network switch and a CTI server means is adapted to communicate between a service switching function device having a service switching functionality within said network switch and said CTI server means. Such an interface means is as well part of an apparatus for providing a service to at least one customer. This apparatus includes a network switch, of which a service switching function device is coupled via an interface means of the present invention to a CTI server means, which is further coupled via an application programming interface to executable means for executing the service.

Abstract: To facilitate routing changes, a telecommunications network (10, 10?, 10??) includes a centralized network routing database (28) queried by each ingress switch upon receipt of a call by a calling subscriber (12). In response to the query, the network routing database returns to the querying switch the identity on the next (downstream) switch in the routing path. The querying switch then translates the switch identity to establish the link to that next switch. Because each querying switch makes the necessary translation of the next switch identity to make the link to the next switch, the centralized network database need not concern itself with the particular characteristics of the switch. To make global routing changes, only the network routing database need be updated, not each individual switch.

Abstract: A multiple point code routing node is configured to recognize multiple point codes as true point codes. The multiple point code routing node originates, terminates, and processes messages having any of its any of its true point codes. As a result, the multiple point code routing node can replace two or more signal transfer points in a conventional telecommunications network without requiring reconfiguration of other nodes in the telecommunications network. Multiple point code routing node may also recognize multiple adjacent point codes or secondary adjacent point codes of a mated multiple point code routing node. Because the multiple point code routing node can associate multiple point codes with its mate, the number of logical or physical signaling links between adjacent multiple point code routing nodes can be increased.

Abstract: A system for using an under-utilized data channel for carrying additional data, in a network mode. One such channel is the D-channel in the ISDN system. In one implementation, a group of telephone call centers share data, using the D-channel, about the lengths of time incoming callers must wait before being answered. Using the shared data, the call centers collectively route incoming calls to call centers having smaller waiting times.

Abstract: An interface means between a network switch and a CTI server means is adapted to communicate between a service switching function device having a service switching functionality within said network switch and said CTI server means. Such an interface means is as well part of an apparatus for providing a service to at least one customer. This apparatus includes a network switch, of which a service switching function device is coupled via an interface means of the present invention to a CTI server means, which is further coupled via an application programming interface to executable means for executing the service.

Abstract: In a communicating apparatus which accommodates a plurality of channels, a message from a sender can be recorded even if a transfer station is busy (a telephone is being employed) or is located at a place where a radio wave does not reach. The communicating apparatus is able to detect a specified signal, such as a tone signal like DTMF or the like, which is transmitted from the sender upon a call transfer. When the specified signal is received, the communication apparatus suspends the transfer of the call and stores a message from the sender using a message recording function of the communicating apparatus.

Abstract: A system and method for connecting a call processes call signaling to determine if a call is a ported call or a non-ported call. A signaling processor determines if a ported number parameter (PNP), such as a forward call indicator (FCI) bit M and/or a ported number generic address parameter (GAP), is present. If the PNP is not present and the signaling processor determines the dialed number is a member of a portable number plan area and central office code combinations (NPA-NXX), the signaling processor queries a ported number database (PNDB). The PNDB responds with the called number dialed digits if the call is not a ported call or a location routing number (LRN) if the call is a ported call. The signaling processor appends a 1 to the nature of address (NOA) subfield of the called party number (CdPN) field if the call is a ported call.

Abstract: System and method for providing a customer with the ability to obtain temporary advanced telecommunication services in the Advanced Intelligent Network (AIN) for the customer's calling line by dialing a call to special access code, without the intervention of a service representative. The call is recognized as a request for an initiation of a temporary advanced telecommunication service with respect to the customer's calling line. On the basis of the recognition, an association may be retained between the calling line number and the service switching point serving the calling line number. This retained association may be used later in the activation of the temporary advanced telecommunication service for the calling line number. The call is routed to a rental service interface through which rental information from the caller may be collected.

Abstract: Methods and systems for routing SS7 messages based on DPC-based routing rules and non-DPC-based routing rules are disclosed. For a message containing signaling system 7 (SS7) information, a message routing function at an SS7 signaling message routing node searches a list of message routing rules using a search key including a DPC parameter extracted from the signaling message. If a matching entry is not located in the first routing rule list, a default SS7 routing rule may be used to route the message. The default routing rule may include wildcard values for each of the network ID, network cluster, and cluster member components of the DPC address field. Multiple default routing rules may be defined using various SS7 discriminator parameters. In addition, new DPC-based routing rules can be created and added to the list of DPC-based routing rules based on lookups in the set of non-DPC-based routing rules.

Abstract: The present invention provides for a method and an apparatus that implements the Bell Communications Research (now Telcordia) Specification of Signaling System No. 7, chapter T1.111.3 algorithm requirements in hardware in a manner that significantly improves throughput capacity and reduces event processing time. The software driven implementations of the MTP-2 algorithms satisfy the requirements of T1.111.3, but only a limited number of communications channels may be processed therewith. The number of channels that may be processed by the present invention, however, is only constrained by the available logic resources and gate delays. In the described embodiment of the invention, 64 channels of data may be processed by the inventive gate array formed to execute the MTP-2 algorithm. To achieve such results, the MLSC inventive gate array includes circuitry that parses incoming signaling into three different groups.

Abstract: A telecommunications network system and method is presented incorporating a distributed feature composition (DFC) architecture, offering new technology for feature specification and composition. In the network architecture of the invention, customer calls are processed by dynamically assembled configurations of filter-like components: each component implements an applicable feature, and communicates with its neighbors by featureless internal calls that are connected by the underlying architectural substrate. Features are coherently accumulated, and the problem of feature interaction is rendered much more tractable.

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: A method and apparatus for translating a first number (e.g., a number dialed by a telephone subscriber) to a second number (referred to as a routing number) is disclosed. An example of an apparatus in accordance with the present invention includes two broad functional components: 1) tables of translation information stored within a database and 2) application software. Upon receiving a query requesting the translation of a dialed number to a routing number, the application software uses information within the received query to query the tables of translation information in order to find the correct routing number. The routing number is then sent to the requester.

Abstract: The invention provides a method, system and device for increasing the efficiency of distributed networks and for enabling SS7-over-IP signaling gateways to share point codes without loss of SS7 functionality. The invention provides for communication among SS7 and IP elements of a distributed network through IP signaling gateways adapted to share point codes. Included is the support of Signaling Connection Control Part (SCCP) management functions across the distributed network system. Authoritative and non-authoritative network elements are used to manage subsystem status and SCCP message routing.

Abstract: Disclosed herein is a method for changing characteristics of a signalling link in a communications system including at least two signalling points and at least one signalling link through which signalling information is transmitted from a first signalling point to an adjacent signalling point. The signalling traffic to be relayed is monitored at a signalling point. A procedure for modifying user connections is performed. A modification request message including an identifier value for identifying the object of modification is sent to the adjacent signalling point. The system flexibly adapts to a temporary increase in signalling load. A set of identifier values are used for identifying signalling links allocated in advance to signalling links between adjacent signalling points. When signalling traffic meets a predetermined condition, a signalling link is modified by inserting in the modification message an identifier value belonging to the set.

Abstract: Methods and systems are disclosed for providing privacy screening service during telephone calls. One method monitors a telephone call for a call screening request. The telephone call is from a calling telephone number to a called telephone number. An action is taken in response to the call screening request. The action could be playing an announcement, terminating the connection, forwarding to voice mail, storing the calling telephone number in a database, adding the calling telephone number to a Do Not Call list, updating a subscriber's profile with the calling telephone number, and/or storing the calling telephone number in a subscriber's blocked call list. The call screening request may comprise a Dual-Tone Multi-Frequency, a softkey entry, and/or a data message.

Abstract: A system and method for providing telephony services, such as caller ID, voice mail, selective call forwarding, and the like, to a remote subscriber, typically located outside the provider's regional territory. The system can include customer premise equipment (CPE) selectively connectable to a remote central office (CO), a packet-switched network gateway, such as an Internet telephony gateway (ITG), for remotely communicating service requests to a local service node. The local service node can be located within the service provider's territory and returns telephony service responses via the packet-switched network gateway to the remote CO, and ultimately the remote CPE.

Abstract: A service is provided not only by an internally preset fixed function but also by an externally provided function which can be altered by a user side. An exchange apparatus provided with a service process section for providing a service associated with a control signal comprises a process location determination section for determining a location of execution of a process associated with the control signal, a control signal notice section for issuing a notice on the control signal to the outside when the determination section has determined that the process is to be executed outside, a data storage section for storing data to be used when the process is executed, a data interface section for reference of data stored in the data storage section in accordance with a request arising from the externally executed service process, and service providing section for providing services based on a result of the externally executed process.

Abstract: The present invention concerns a method, a switching center, a converting node, and a service control point for the transmission of service signaling messages, with service signaling messages being transmitted in sequences through a signaling network between switching centers (SW1, SW2, SW3, SW6). The service signaling messages are each directed from an originating switching center to a destination switching center using a destination code and a converting node (CP) if necessary determines a ported subscriber code assigned to the subscriber code. It is proposed that the originating switching center determine a ported subscriber code and enter it into the those signaling messages as destination code which the originating switching center sends within a sequence of signaling messages following a first signaling message.

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: Migration of a circuit-based-switch to a packet-based-soft-switch in a SS7 telecommunications network is accomplished with no disruption to subscriber service and retains and reuses the assigned signaling point code (SPC) of the existing circuit-based-switch. The system and method inserts a new soft-switch between an SS7 signaling transfer point (STP) and the existing circuit-based-switch in a way where traffic is split incrementally off the circuit-based-switch to the soft-switch so that no administrative changes are required at either the STP or the existing circuit-based-switch. The soft-switch is gradually cutover to act as a proxy STP and tandem switch for the existing circuit-based-switch and routes all calls to and from the network on behalf of the existing switch. The system makes use of multiple internal networks of the soft-switch to accomplish the controlled routing of bi-directional traffic.

Abstract: A method of routing signalling information at a signalling transfer point of a telecommunication network. A Global Title Routing Case (GTRC) table is provided for mapping Global Titles to GTRCs, where each GTRC is allocated a primary and secondary destination signalling point. At least one peak time period is predefined, and said primary and secondary destination signalling points are swapped for a fraction of said GTRCs during said peak period to allow for load sharing during this period. For a signalling transfer request received at the signalling transfer point, the Global Title associated with the request is mapped to a GTRC using the GTRC table, and the destination signalling point is determined in dependence upon the primary and secondary destination signalling points allocated to the mapped GTRC and signalling point availability, and, in the case of said fraction of GTRCs, the time at which the request is received.

Abstract: A first call processing system advantageously uses a constant bit rate connection and a variable bit rate connection to utilize the bandwidth for a data call. The first call processing system receives signaling for the data call. The first call processing system then processes the signaling to generate a first instruction to set up a constant bit rate connection for the data call between the first call processing system and a second call processing system. The first call processing system processes the signaling to generate a second instruction to set up a variable bit rate connection between the first call processing system and the second call processing system. Any bandwidth that the data call does not need and use can be utilized for other calls. Thus, the performance of other calls is improved.

Abstract: An application module interface (AMI) allows one or more modules to access voice or data channels in a private branch exchange (PBX) environment. The AMI provides a control channel that allows a module to obtain and vary the status and configuration of a telephone terminal and permits communications with the application module(s) connected to a telephone terminal. A frame format includes, for example, a start bit (logic “1”), three control channel bits, C, and eight stop bits (logic “0”). The control channel field, C, bits include one flag bit and two data bits. A complete control channel data word is split, for example, over five consecutive AMI frames and contains, for example, a total of nine data bits and a parity bit, transmitted least significant data bit first. The parity bit creates “even parity” for the ten total bits. The flag bit is set to one to indicate the start of a new control channel word, or zero otherwise.

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 method and system for providing a dialed digit unlock and edit feature for a digital telephone connected to an advanced intelligent network (AIN) wireline network is disclosed. The digital telephone sends at least one digit of a called party number to an originating ISDN switch. The originating ISDN switch determines whether a Q.931 CALL PROCEEDING call control message has been sent from the originating ISDN switch to the digital telephone. If so, then the dialed digit unlock and edit feature is disabled. However, if the Q.931 CALL PROCEEDING call control message has not been sent, then the originating ISDN switch determines whether a key to enable the dialed digit unlock and edit feature has been entered on the digital telephone. If the key has been entered, then the last digit(s) entered for the called party number are erased and the originating ISDN switch awaits a new digit(s) to be entered into the digital telephone.

Abstract: A method and system for providing a dialed digit unlock and edit feature for an analog telephone connected to an advanced intelligent network (AIN) wireline network is disclosed. The analog telephone sends at least one digit of a called party number to an originating central office. The originating central office determines whether an initial address message (IAM) has been sent from the originating central office to a destination central office. If so, then the dialed digit unlock and edit feature is disabled. However, if the IAM has not been sent, then the originating central office determines whether a key to enable the dialed digit unlock and edit feature has been entered on the analog telephone. If the key has been entered, then the last digit(s) entered for the called party number are erased and the originating central office awaits a new digit(s) to be entered into the analog telephone.

Abstract: An element management system (“EMS”) interfaces between a telephone company administrative or customer service computer or a terminal and a telephone network element. The EMS contains a proxy database and maintains it between the periods when access to the telephone computer system is desired and available, without detrimentally involving the telephone computer system, the telephone switching network or any elements thereof. The EMS is capable of operating as the sole repository of subscriber data in a telephone computer system configured to operate in such an environment. The proxy database effectively mirrors subscriber data in one or more central offices and/or other network elements of the telephone computer system.

Abstract: An AIN system having a service switching point (SSP), a service control point (SCP) and an intelligent peripheral (IPe) is disclosed. A calling party makes a call to a called party which results in a trigger signal at the originating SSP. The trigger signal causes the SSP to access the SCP which, in turn, sends a Send_to_Resource message to the SSP. In response to the Send_to_Resource message, the SSP establishes a first connection to an IPe, whose functionality is required. The IPe establishes a second connection carrying a second call to the called party, the first and second calls being connected at the IPe. The IPe subsequently requests that the SSP merge the first and second calls. In response, the call between the called party and the calling party is connected via the SSP, thereby releasing the IPe connections formerly used to connect calling and called parties.

Abstract: A system for providing call processing services to one or more customers includes a network configured to receive, from a first client, a fax transmission attempt intended for a second client associated with a customer. A network call processor within the network is configured to screen a first fax telephone number corresponding to the first client and a second fax telephone number corresponding to the second client and determine whether to deliver a fax transmission to the second client.

Abstract: A Service Control Point (SCP) directs a telecommunications network to connect a resource only when the resource is needed. When the resource is no longer needed, the SCP selects a new connection for the network. The SCP directs the network to disconnect the resource and use the new connection so the resource does not remain on the line during the entire call. The invention can be used to add and drop multiple resources from a call while the call is in progress. The SCP also provides context information for the call so multiple resources can access context information for the call.

Abstract: A communications system includes a first network of a first type and a second network of a second type. One example of the first network is a circuit-switched network that employs a time-division multiplexing (TDM) scheme. An example of the second network is a packet-based network such as an Asynchronous Transfer Mode (ATM) network or an Internet Protocol (IP) network. A call request originated in the first network is received by a gateway system coupled between the first network and the second network. A call is then established over the second network. A success indication of the call over the second network is waited for before establishing a bearer traffic connection between the first network and the second network.

Abstract: Described is a method for controlling nodes in a network including the steps of sending a proposed maximum working rate to a plurality of nodes, computing the number of responses received from the nodes by a central controller in a set period and adjusting the maximum working rate sent to the nodes based on the number of responses received.

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: A method for providing communication service in an Advanced Intelligent Network environment comprises receiving an alert message the originates from a database, the alert message including a protocol parameter; identifying a protocol that controls communication between the intelligent peripheral and the database in a protocol identifying by the protocol parameter, the protocol being stored in a database in the IP containing a plurality of protocols and a plurality of protocol parameters, each protocol in the plurality of protocols being correlated with a unique protocol parameter from the plurality of protocol parameters; and executing the protocol.

Abstract: The invention relates to a method and arrangement, for operating a telecommunication network (14), with a control computer (66), which controls a network element (12c) of a network node in a telecommunication network (14). In addition to the operating system thereof the control computer (66) has at least one first interface programme (80) and a signalling programme (76, 78), which carries out signalling processes between the control computer (66) and further control computers (34, 36, 38) in the telecommunication network (14). An applications computer (72), connected to the control computer (66), has, in addition to the operating system thereof, at least one second interface programme (82) and at least one application programme (84 to 92). Data is transmitted to the first interface programme (80) by means of the second interface programme (82) and received by the above, which contains signalling information.

Abstract: A method for screening a signaling message in a No. 7 signaling network is disclosed. Transmission of a signaling message to be abandoned is prevented and the amount of loads of the signaling network is thereby reduced by transmitting screening information to the originating signaling point of the corresponding signaling message with respect to the signaling message to be abandoned at the gateway signaling point during signaling message screening. In addition, at the originating signaling point of the corresponding signaling message, the system can determine why a normal signal routing could not be achieved by analyzing the signaling message screening information and notifying the network manager of the same. Proper action to correct this problem can then be taken.

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 provides a method of managing multiple signaling end points in a telecommunications network. The method includes the steps of defining one or more extended capability codes within one or more Signaling System 7 Gateways, where each extended capability code corresponds to one or more signaling end points within a data network, tracking the accessibility of the signaling end points associated with each extended capability code, and listing states of the accessibility of the extended capability codes.