Abstract: A database for a telecommunication service includes a first record for a first number having a predetermined NXX, and a second record for a second number having the predetermined NXX. The first record includes an indication that a call having an automatic number identification associated therewith is acceptable for the first number. The second record includes an indication that a call having at least one of an automatic number identification and a calling party identification associated therewith is acceptable for the second number. Associated methods and systems for providing a telecommunication service for the predetermined NXX are disclosed.

Abstract: A method for inhibiting the use of dual tones over an established voice channel of a telecommunications network. The method inhibits a call tone by removing at least one frequency selected from a group of frequencies used for in-band signaling. The method may also determine a time for inhibiting the call tone.

Abstract: A system and method for exchanging telecommunication service information between a telecommunication service provider and a telecommunication service customer include electronically receiving a request in a predefined format to establish an interactive session with a telecommunications customer, determining whether the telecommunications customer is authorized for electronically exchanging information and continuing only if the customer is authorized, parsing the request to identify information related to at least one telecommunications service offered by the telecommunications services provider, the telecommunications service having an associated identification code, determining whether the requested telecommunications service is available in a particular location, and automatically generating information associated with the requested telecommunications service and transmitting the information using the predetermined format to the customer.

Abstract: A direct inward-outward dialing (DIOD) trunk circuit having a DIOD detecting/sending circuit connected to tip and ring terminals connected to a central office line and a primary coil of a transformer, for detecting a polarity of the voltage potential at the tip and ring terminals and the current flowing therethrough to determine reception of one of an incoming and outgoing telephone call, and a switch, controlled by a relay driver responsive to an interface circuit used for interfacing the DIOD trunk circuit with a switching circuit of a private branch exchange (PBX), for enabling the current to flow between the tip and ring terminals through the DIOD detecting/sending circuit via one of a low or high impedance path, wherein the low impedance path is used to establish a speech path between a central office line subscriber and a corresponding extension subscriber of the PBX.

Abstract: A method and system include restricting destinations of a telephone call from a calling station, which has been assigned a privilege class. A service control point (SCP) stores blocking tables, based on privilege classes, and a privilege class control table, which associates the blocking tables with each privilege class. The SCP ascertains the assigned privilege class of the calling station and determines whether the telephone call corresponds to one of the types of blocking tables. When the telephone call does correspond, the SCP determines whether the assigned privilege class corresponds to the blocking table that corresponds to the attempted call. When there is no privilege class correspondence, the SCP bypasses validation of the called number. When there is privilege class correspondence, the SCP validates the called number and blocks the call when the called number is validated or continues call processing when the called number is not validated.

Abstract: An apparatus and methods enforcing network-centric control over access to a selected destination point in a switched telephone network are presented in which, a user seeking access to the selected destination point is authenticated in the network on a separate telephone connection prior to authorizing the user to access the selected destination point. An on-the-fly generated authorized calling line identification is associated with an origination point from which the user initiates the call completion request to enforce access control. The call completion is monitored end-to-end and the resulting telephone session is audited at the signaling and payload levels providing management support personnel with information substantiating the release of the call in case of misuse or intrusion.

Abstract: An adaptive call forwarding system for a telephonic system providing for selectively inhibiting call forwarding of calls sent from a calling telephonic station and received at a called telephonic station to a selected remote telephonic station. Automatic identification of the number of a calling telephonic station is provided with automatic inhibiting of call forwarding for an identified calling station. A preselected enable signal, if not inhibited from the calling telephonic station during a preselected time period results in the call being forwarded to the selected remote telephonic station.

Abstract: A system for anonymous voice communications between members of an online community includes a server, a member database, and a switch. The server receives a call request from a first member identifying a second member. The server searches the member database for screening data associated with the second member, and the call request is validated based upon the screening data. The screening data may include a preferred member list, geographic proximity restrictions, personal or demographic preferences, and/or time restrictions, which may be compared to the profile of the first member to determine whether to authorize the call request. Once validated, a call notice is sent to the second member, identifying the first member and requesting acceptance of the call request. If accepted, telephone numbers of the members are obtained, e.g., from the member database, and the switch connects the members via a telecommunications network.

Abstract: A system and method for detecting and preventing a fraudulent telephone call in telecommunication system is provided. First, a terminating number of a first call and a originating number of a second call are received from a telecommunication network. The terminating number of the first call is compared with the originating number of the second calls which are originated within a predetermined time period from a termination of the first call. After comparison, it is determined whether the first and the second calls are fraudulent telephone call.

Abstract: Terminating number screening to block portable billing products from terminating to a designated high fraud domestic or international terminating numbers. When a call is placed and it is billed to a portable billing product, the dialed digits of the terminating number is verified against the terminating number screening database. If the sequence of dialed digits is found in the terminating number screening database, the call is denied. The caller is then informed that they cannot place a call to this destination and asked if there is another terminating number they wish to call. If the sequence of dialed digits is not found in the terminating number screening database, the call is allowed to process without interruption. The purpose of this functionality is to protect the Operator Service network from repeated fraudulent calling to individual telephone line numbers either international or domestic.

Abstract: The present invention relates to a method for providing personal services for a communication means of a user, said communication means being connected to a communication network. The invention furthermore relates to a service computer therefor, a service server therefor, a service container therefor, a service computer module for a service computer and a service server module for a service server.

Abstract: A call intercept process (CIP) for calling card calls originating from an international country and terminating at an international high fraud country. When a call is placed via a calling card and terminates to a high fraud terminating location, the call is first screened against a database to determine if the termination is in fact, a high fraud country. Regardless of whether this screening is implemented, the call is routed to a first level operator in order to verify the billing account information of the caller as an authorized user. This verification is based on customer and business name, address, zip code, and phone number. If the caller passes verification, a CIP process automatically overrides the calling card from any future Intercepts. If caller fails account verification, the a CIP process automatically places the card in a ‘LOCKED STATUS MODE’ which mode indicates that any additional calls based on that card be intercepted regardless of termination.

Abstract: Fraud prevention in a telecommunications network using call initiation equipment including intelligence capable of authentication is described. In order to initiate a call via a telecommunications network, the call initiation equipment sends authentication data to an adjunct platform. The adjunct platform uses the authentication data to determine if the call initiation equipment is authorized to use the customer wireline that interconnects the call initiation equipment to the telecommunications network.

Abstract: The invention relates to methods and apparatus for determining whether a CPS should employ a standard interface or an unreliable network for routing telephone calls. The invention includes a telephone call switching apparatus which includes a routing engine configured to receive a telephone call from a terminal connected to the call switching apparatus and a switching matrix connected thereto. The telephone call includes a destination code. The routing engine is configured to receive the telephone call from a terminal or trunk line, determine an unreliable network route for the telephone call based upon the destination code, and provide a message to a call manager associated with the unreliable network route (via the switching matrix). The message includes the destination code. The routing engine is also configured to receive a response from the call manager; and route the call over the unreliable route if the response is affirmative.

Abstract: The integration of various federally required and state mandated do-not-call lists for telemarketers into a system that automatically blocks outgoing calls from a number of companies (“Customer Companies”) taking into account factors such as preexisting customers which may legally be contacted is disclosed. The system reviews outgoing calls by a telemarketer, compares it to the general do-not-call lists and the specific customer company do-not-call list and override permitted call list to make a determination if the call should be completed. This integration is due to the incorporation of a general purpose computer in a central location that is connected to all the major telephone carriers switch cluster locations and operated by a service provider. The “do-not-call” database of originating/destination pairs, as well as the logic for blocking or permitting telephone calls, is stored in this computer.

Abstract: The present invention provides a blocked call routing apparatus and method that allows a caller to access a blocked number, such as a 1-8YY paging service, from a restricted device. The blocked call routing apparatus includes a controller, a database interface and a network interface. The blocked call routing apparatus receives call signals through the network interface and retrieves information from a database, through the database interface, corresponding to the source type and call destination address. Based on the information obtained from the database, the blocked call routing apparatus determines whether the call is blocked or unblocked. If the call is blocked, the blocked call routing apparatus queries the called party to determine if they wish to accept the additional charges necessary to complete the call. If they do, the block is overridden and the call is completed.

Abstract: Real time detection of the fraudulent use of a telecommunications network is accomplished by analyzing data for each call that is occurring within the network. A signal protocol receiver is used to collect signaling protocol for each call that is occurring within the network. The Signaling protocol data is collected, decoded and formatted into call information records (CIRs). The CIRs contain various operator specified parameters for each call that is occurring within the network. The CIRs are compared to operator defined thresholds. If any of the CIRs exceeds the thresholds, an alert is generated. The alerts are stored in a database where the operator can analyze them and take the appropriate corresponding action to resolve the alert. The alerts and the CIRs are archived in a database so that trends of fraudulent use can be detected and prevented. This method of fraud detection provides for the effective analyzation of every call that is occurring within the network.

Abstract: A system and method for blocking unwanted telephone calls. The system uses voice recognition as the primary characteristic for blocking as opposed to a simple dial source number block. The system thus allows call blocking from any phone anywhere, since the dialing number is immaterial for the decision to block.

Abstract: A cellular telephony network includes a supplementary service (SS) database in an intelligence network (IN) node. The SS database stores subscriber record which includes call barring data such as screening lists of specific numbers or countries and call barring options that indicate the treatment of the call barring data. The SS database may be located in an IN node connected to a mobile service center/visitor location register in a cellular telephony network or a signaling database point in a signaling network connected to the cellular telephony network or in the home location register of the cellular telephony network. At call origination, the MSC/VLR transmits the requested called number and MSISDN of the mobile subscriber to the SS database. The IN node compares the requested called number to the subscriber record associated with the MSISDN of the mobile subscriber and transmits a message to the MSC/VLR indicating whether the call is barred.

Abstract: A central station blocks calls for a subscriber. The central station receives a call from a caller and provides an audio message to the caller requesting that the caller provides a first indicator if the caller is an unwanted caller or a second indicator otherwise. The central station receives the first indicator or the second indicator. If the central station receives the first indicator, the call is blocked. If the central station receives the second indicator, the call is passed through.

Abstract: An improved system for detecting and preventing telecommunications fraud prior to call connection, in which attempted calls are screened for fraud at the point of calling card validation in the SCP. The SCP accesses a database holding a variety of fraud decision nodes that may be interrelated and grouped together to cooperatively define fraud screening trees against which attempted calls may be tested. A fraud screening tree ultimately produces a fraud prediction based on a variety of information concerning the attempted call. The present invention therefore facilitates fraud screening with greater granularity and customization.

Abstract: The invention provides dynamic binding and bridging between a mobile terminal and other more complex terminals in a communication system. In an illustrative embodiment, a temporary association is established, in a memory of a system switch, between the mobile and at least one other system terminal. While the mobile is “registered” in this manner to the other terminal, the mobile user can request permission to utilize the functions of the other terminal in order to, for example, receive incoming calls or place outgoing calls. The temporary association may be established based on a determination of the proximity of the mobile to the other terminal, such that the mobile registers to different complex system terminals as it moves between different cells of the system. The invention also provides techniques which allow users to access a user-defined profile for one terminal at another terminal of the system.

Abstract: The present invention is provided to improve congestion control without changing a quality of a connection service of communications even if congestion occurs and realize a flexible correspondence. The congestion control method, comprising the steps of generating a call pattern as time series data of calls from a subscriber, performing Fast Fourier transformation on the time series data of the calls to detect short periodic component of a frequency, delaying the detected short periodical component with a prescribed threshold, and delaying a timing of sending a congestion tone (CT) or busy tone (BT) when the value of the short periodical component exceeds the prescribed threshold.

Abstract: An anonymous testing system for taking a sample of body fluid to be tested, the. sample is acquired in private and sent for analyzation to obtain results. The system comprises a test kit for creating a sample of body fluid, a personal code for anonymously identifying the sample and the person, and an electronic file telephonically created and accessed by the person taking the test and identified by the personal code. The electronic file contains the test results determined by analyzation. There is also a method of anonymously testing of a person's body fluid in private and the results to be anonymously received by the person without having to reveal his or her identification. The method comprises the steps of procuring a test kit for taking a sample of the body fluid. The test kit has a personal code associated therewith and equipment to take the sample. The person uses the equipment to obtain the sample and sends the sample with the personal code to a testing site.

Abstract: A subscriber of a public switched telecommunications network may gain direct access his/her voice station set (12) to the Internet (14) by first accessing a special platform (16) in the telephone network. The special platform (16) serves to validate the subscriber, and upon validation, converts a entered address label, entered by the subscriber via DTMF or voice, into a corresponding TCP/IP address for a site on the Internet. After launching the address to gain access to the site, the special platform converts orders entered by the subscriber via DTMF or voice into TCP/IP text commands, and converts TCP/IP commands received from the site into voice for transmission to the subscriber.

Abstract: A system and method for exchanging telecommunication service information between a telecommunication service provider and a telecommunication service customer include electronically receiving a request in a predefined format to establish an interactive session with a telecommunications customer, determining whether the telecommunications customer is authorized for electronically exchanging information and continuing only if the customer is authorized, parsing the request to identify information related to at least one telecommunications service offered by the telecommunications services provider, the telecommunications service having an associated identification code, determining whether the requested telecommunications service is available in a particular location, and automatically generating information associated with the requested telecommunications service and transmitting the information using the predetermined format to the customer.

Abstract: A system and method of telephony security for controlling and logging access between an enterprise's end-user stations and their respective circuits into the public switched telephone network (PSTN). A security policy, i.e., a set of security rules, are defined for each of the extensions, the rules specifying actions to be taken based upon at least one attribute of the call on the extension. Calls are detected and sensed on the extensions to determine attributes associated with each call. Actions are then performed on selected calls based upon their attributes in accordance with the security rules defined for those extensions.

Abstract: A system and method for implementing a fully integrated and cooperative telecommunications firewall/scanner that can be deployed either as a standalone device, or over a large-scale distributed client-server architecture is described. In addition to providing enhanced telecommunications firewall and scanner security capabilities, the integrated telecommunications firewall/scanner provides the capability to ensure implementation of a corporate-dictated security structure, and event visibility and report consolidation requirements, across a globally-distributed enterprise, using policy-based enforcement of a Security Policy. In the most basic configuration, the integrated firewall/scanner performs continuous security access monitoring and control functions, keyword and content monitoring and control functions, and remote access authentication, initiating coordinated vulnerability assessments, as well as automatic synchronous adjustments to the Security Policy in response to the vulnerability assessment results.

Abstract: An anonymous testing system for taking a sample of body fluid to be tested, the sample is acquired in private and sent for analyzation to obtain results. The system comprises a test kit for creating a sample of body fluid, a personal code for anonymously identifying the sample and the person, and an electronic file telephonically created and accessed by the person taking the test and identified by the personal code. The electronic file contains the test results determined by analyzation. There is also a method of anonymously testing of a person's body fluid in private and the results to be anonymously received by the person without having to reveal his or her identification. The method comprises the steps of procuring a test kit for taking a sample of the body fluid. The test kit has a personal code associated therewith and equipment to take the sample. The person uses the equipment to obtain the sample and sends the sample with the personal code to a testing site.

Abstract: An emergency breakthrough system allows users to break through a busy signal, using an automated rather than operator assisted technique. Upon receipt of a busy signal, rather than hanging up and dialing an operator to gain a manual assistance for third party call breakthrough, the calling party is able to keypad an enablement request, such as *85, requesting emergency call breakthrough. After that entry, the system awaits a breakthrough passcode, such as a four digit number, which if validated permits the user to breakthrough the busy signal and reach the called party, without operator intervention. Predesignated numbers can gain automated access by ANI identity of the calling number.

Abstract: A system and process for automatic storage, enforcement and override of consumer do-not-call (DNC) requests includes a control device for selectively blocking communication between a communication device and a destination over a communication medium. The control device is connected to the communication medium and to a database for storing identifiers of destinations for which communication is to be blocked. The communication device has an input mechanism responsive to a user to generate an identifier of the destination. The input mechanism is also responsive to an update signal indicating that the identifier should be added to the database or an override signal indicating that the blocked call should in fact, be permitted, thereby overriding the blocking mechanism. The communication device is automatically updated with information stored in the database which may be used by the communication device to process further communication.

Abstract: The invention provides a system and method for extending a limit of a pre-paid calling card without disconnecting the communicating parties. When a first party makes a call using a pre-paid calling card and the limit of the calling card is reached, a call extender either queries the called party or launches a call to another party to query if these parties would pay for the remainder of the call or whether the parties would pay for extending the limit by an agreed amount. If a party agrees to pay for one of the above options, the call extender permits the call to continue and bills the accepting party accordingly.

Abstract: An apparatus and method are disclosed for playing an announcement to a calling party that is placing a call in an anonymous manner to prompt the calling party to respond in a manner which causes a switch to make the call identifiable by the called party. The apparatus is operable to play the announcement if the called party is a subscriber to anonymous call rejection and has activated the feature and if the calling party is calling in an anonymous mode. If the calling party does not respond within a specified time period the call is blocked. Specified responses include verbal responses as well as key entries on the calling party phone. A typical specified time period is five seconds.

Abstract: The present invention provides a voice monitoring system for remote subscribers, which enables voice monitoring for even those calls which are set in speech mode after connected by drop-back in remote local equipment without the intervention of a time division switch in a telephone network. The voice monitoring system for remote subscribers offered by this invention is intended for voice monitoring for subscribers accommodated by remote local equipment connected to a time division switch in a telephone network.

Abstract: In a communication system (KS), communication terminals (KA) provided for a legitimacy check are allocated to at least one inhibit dial evaluation routine (SWABE). In the framework of a call (ar), the call numbers (zrn) communicated to the inhibit dial evaluation routine (SWABE) as well as the call number (rnr) of the respective communication terminal (KA) are acquired and call numbers (zrn) or, respectively, call number combinations (rnr,zrn) that cannot be evaluated are reported to an application means (PC) via an application interface (acl). The calls (ar) are held in the communication system (KS) until the communicated call numbers (zrn) or, respectively, call number combinations (rnr, zrn) have been checked in the application device (PC) in view of their legitimacy and a legitimacy result (acl-amo) has been communicated from the application device (PC) to the communication system (KS).

Abstract: A method and apparatus for operating on intelligent network calls in a telephone exchange with multiple access subsystems and an interconnection subsystem is provided. A list of intelligent network criteria is stored in each access subsystem. When an incoming call is received the access subsystem determines whether the incoming call matches one of the intelligent network criteria stored in the access subsystem. If a match occurs the access subsystem performs an intelligent network function. Intelligent network function may include filtering the call. If filtering is to occur a filtering method associated with the matched active filtering criteria is applied to determine whether a call should be blocked as a function of the filtering method.

Abstract: A method for use in an environment having a service provider, a subscribed terminal, and a remote terminal, for activating a service for the subscribed terminal. The method processes an order from a terminal and processes an authorization request from a terminal. However, the service order is activated only upon an authorization request from the subscribed terminal. The subscribed terminal may be a telephone in which case a caller ID value provided by a central office switch serving the requesting terminal is used to determine whether a requesting telephone is the subscribed telephone.

Abstract: An anonymous testing system for taking a sample of body fluid to be tested, the sample is acquired in private and sent for analyzation to obtain results. The system comprises a test kit for creating a sample of body fluid, a personal code for anonymously identifying the sample and the person, and an electronic file telephonically created and accessed by the person taking the test and identified by the personal code. The electronic file contains the test result determined by analyzation. There is also a method of anonymously testing of a person's body fluid in private and the results to be anonymously received by the person without having to reveal his or her identification. The method comprises the steps of procuring a test kit for taking a sample of the body fluid. The test kit has a personal code associated therewith and equipment to take the sample. The person uses the equipment to obtain the sample and sends the sample with the personal code to a testing site.

Abstract: An anonymous testing system for taking a sample of body fluid to be tested, the sample is acquired in private and sent for analyzation to obtain results. The system comprises a test kit for creating a sample of body fluid, a personal code for anonymously identifying the sample and the person, and an electronic file telephonically created and accessed by the person taking the test and identified by the personal code. The electronic file contains the test results determined by analyzation. There is also a method of anonymously testing of a person's body fluid in private and the results to be anonymously received by the person without having to reveal his or her identification. The method comprises the steps of procuring a test kit for taking a sample of the body fluid. The test kit has a personal code associated therewith and equipment to take the sample. The person uses the equipment to obtain the sample and sends the sample with the personal code to a testing site.

Abstract: A system, apparatus and method are provided for controlling the start of alerting of multiple leg telecommunication sessions, such as for providing concurrent alerting of outgoing call legs for a flexible alerting service. The preferred system includes a home location register coupled to a mobile switching center. The home location register has, stored in a memory, a plurality of secondary directory numbers associated with a primary directory number, such as an ANSI compatible pilot directory number, and for each secondary directory number of the plurality of secondary directory numbers, further stored in the memory a corresponding timing delay parameter. The mobile switching center has an interface for receiving an incoming call leg designating the primary directory number and for differentially processing and routing each outgoing call leg associated with each secondary directory number, of the plurality of secondary directory numbers, according to its corresponding timing delay parameter.

Abstract: A system, apparatus and method are provided for controlling secondary treatment of multiple leg telecommunication sessions, such as for providing secondary treatment of outgoing call legs for a flexible alerting service, by an originating switch rather than a distant or terminating switch. The preferred system includes a home location register coupled to a mobile switching center. The home location register has, stored in a memory, a plurality of secondary directory numbers associated with a primary directory number, such as an ANSI compatible pilot directory number, and for each secondary directory number of the plurality of secondary directory numbers, further stored in the memory a corresponding originating no answer time parameter.

Abstract: A telephone call screener and method of use is disclosed for use with a user's telephone system. It rejects unwanted telephone calls, such as those from telemarketers, while still allowing personal calls to ring through to the user, all without any user involvement. The screener recognizes an incoming call and disconnects the user's telephone. The screening process then reads prerecorded messages to the caller, attempting to verbally filter out and reject undesired call types. In a first embodiment, the screener generates a random single digit number, and requests the caller to press this number key on their phone to verify compliance with the previously read message. Depending on the caller's actions, the call is either disconnected, or is allowed to ring through to the user's telephone. Neither the caller nor the screener user needs to know any predefined codes. Further, the screener does not depend on any Caller ID system or telephone answering machine.

Abstract: In an intelligent switched telephone network wherein a redirection service is operative with respect to communications directed to a directory number to direct communications away from the directory number to at least one other directory number, a method and system for bypassing the redirection service and routing a communication to the directory number. A communication received in the network and directed to the directory number has its identification information read and compared to entries in a database of subscriber information for a matching entry. The matching entry is read for a bypass feature, which indicates that the source of the communication is to be given an option of bypassing the redirection service and of having the communication routed to the directory number. In response to finding the bypass feature, the source is accorded an opportunity to enter a password. The entry of the password indicates a desire by the source to take advantage of the bypass option.

Abstract: An anonymous testing system for taking a sample of body fluid to be tested, the sample is acquired in private and sent for analyzation to obtain results. The system comprises a test kit for creating a sample of body fluid, a personal code for anonymously identifying the sample and the person, and an electronic file telephonically created and accessed by the person taking the test and identified by the personal code. The electronic file contains the test results determined by analyzation. There is also a method of anonymously testing of a person's body fluid in private and the results to be anonymously received by the person without having to reveal his or her identification. The method comprises the steps of procuring a test kit for taking a sample of the body fluid. The test kit has a personal code associated therewith and equipment to take the sample. The person uses the equipment to obtain the sample and sends the sample with the personal code to a testing site.

Abstract: The multiple location, communications network is provided as an overlay application to, for example, one or more private networks. The network adds increased flexibility to an existing private network system by adding additional features, e.g., abbreviated dialing plans, function number dialing, automatic selection of routing, centralized access to private and public network facilities, outgoing call screening, and work-at-home functionality, that may not be currently available to the private network subscriber. Further, the network overlay application of the present invention is adapted to maintain and not disturb the subscriber's current service or the existing private network.

Abstract: A telephony application capable of being updated while on-line is disclosed. The application supports a plurality of active dialogs with callers, and comprises functions, call flows, voice prompts, and on-line updating versions for making on-line modifications of the functions, call flows, and voice prompts. The modifications are coordinated so that selected sets of functions, call flows and voice prompts can be committed to use while one or more active dialogs are occurring without affecting the active dialog(s).

Abstract: The present invention relates to a system and a method for limiting call velocity attempts in the public switched telephone network. A central office of the network is provided with a program element that examines all the physical channels from respective customer premises equipments (CPE). The program element counts the number of times each CPE goes off-hook within a given period of time. This condition is interpreted as an attempt to establish a call through the telephone network. If the number of attempts exceeds a threshold, the physical channel is de-activated for a predetermined time period. De-activation means that call establishment over that channel is negated for all possible destinations. This can be implemented by preventing establishment of dial tone. In a variant, selective de-activation is effected.

Abstract: An apparatus and method is disclosed for performing policing functions for specialized telephone services, and for mitigating fraudulent usage of such services in ubiquitous telephone networks that carry voice, facsimile or voice-band-data traffic. Signal processing is used to determine the properties of traffic present on a channel at a given point in time, and actions are conditionally imposed based on such traffic properties. A first embodiment of the invention can be applied to prevent fraudulent use of telephone services through suppression of an answer supervision response. A second embodiment of the invention can also be applied for regulation of access to specialized telephone services which depend on the manner of customers' use of such services.

Abstract: A system facilitates use of a corporate dialing plan by authorized remote callers. The system includes a receiving element, a sending element, a detecting element, and an establishing element. The receiving element receives a telephone call signal and a telephone number from a remote caller indicating a desire to use the corporate dialing plan for placing a telephone call to a called party using the telephone number. The sending element sends a telephone calling signal to the called party at the telephone number using the corporate dialing plan. The detecting element detects an answer signal from the called party in response to the sending element sending the telephone calling signal. The establishing element establishes a connection between the remote caller and the called party when the detecting element detects the answer signal.

Abstract: An Address Presentation Restricted Indicator within an Initial Address Message (IAM) call setup signal includes a value indicating that a requested call connection is an emergency call. In response, even if the terminating subscriber has an Anonymous Call Rejection (ACR) subscriber feature activated, the terminating end office overrides the activated feature and effectuates a call connection towards the terminating subscriber without displaying the directory number associated with the originating subscriber. A memory register associated with a CLASS Automatic Recall (CAR) subscriber feature is further not updated with the incoming directory number to preclude a call back to the originating subscriber from the terminating subscriber.