Abstract: The invention is directed to a first electronic device. The first electronic device receives a phone call that was routed to the first electronic device by a call-routing service. While receiving the call, the first electronic device receives a request to route the phone call to a second electronic device. In response to receiving the request to route the phone call to the second electronic device, in accordance with a determination that a first routing criteria have been met, the first electronic device sends a request to the call-routing service to route the phone call to the second electronic device instead of routing the phone call to the first electronic device. In accordance with a determination that a second routing criteria have been met, the first electronic device causes call data associated with the call to be routed through the first electronic device to the second electronic device.

Abstract: Methods for multiple-termination routing in a wireless network environment that includes an Internet Protocol (“IP”) core are described herein. One method includes receiving a call delivery request. The call delivery request includes a called number. The call features associated with the called number are determined. A determination is made whether the call features include multiple-termination routing information for a plurality of potential terminating devices. When the call features include the multiple-termination routing information including at least one termination to be routed utilizing Session Initiation Protocol (“SIP”), a call setup is initiated to each of the plurality of potential terminating devices.

Abstract: A computer integrated with universal telephone functions, includes a normal computer and system thereof. The computer is integrated with a public switched telephone network (PSTN) telephone interface and communication functions thereof, the PSTN telephone, a voice over Internet protocol (VoIP) telephone, wireless communication, faxes and the computer are integrated in the computer system, a user simply needs a terminal (telephone handle/mobile telephone), to use the PSTN and the network telephone conveniently.

Abstract: Methods for multiple-termination routing in a wireless network environment that includes an Internet Protocol (“IP”) core are described herein. One method includes receiving a call delivery request. The call delivery request includes a called number. The call features associated with the called number are determined. A determination is made whether the call features include multiple-termination routing information for a plurality of potential terminating devices. When the call features include the multiple-termination routing information including at least one termination to be routed utilizing Session Initiation Protocol (“SIP”), a call setup is initiated to each of the plurality of potential terminating devices.

Abstract: A video and digital audio transport system transports high resolution computer, video, computer video graphics and other video signals, as well as multiple channels of high quality audio, over extended lengths of unshielded twisted pair (UTP) cabling. Frequency compensation techniques are employed to extend the bandwidth of the UTP cables, and differential signaling over the common mode of a first two of the four twisted pairs comprising the UTP cable is used to transmit horizontal sync and differential signaling over the common mode of a second two of the four twisted pairs is used to transmit vertical sync. In addition, a unique digital encoding technique is applied to a standard digital audio encoding protocol to augment the number of available audio channels. A digitally controlled delay line is incorporated to compensate for the different lengths of each twisted pair.

Abstract: In one embodiment, a server may obtain source data for a communication session having a combined audio portion and non-audio portion. As such, the server may actively split the audio portion of the communication session from the non-audio portion of the communication session, and then provide the audio portion (to a first set of one or more phones) over a phone channel and the non-audio portion (to a second set of one or more phones) over a separate data channel. The second set of phones may then obtain and merge the audio portion from the phone channel and the non-audio portion from the data channel to reestablish the full communication session.

Abstract: A facsimile device may be capable of sending and receiving facsimile data by utilizing a first communication line. The facsimile device may comprise an information input device configured to input information, a line connecting device that connects the first communication line in a case where predetermined information is input to the information input device, a line disconnecting device that disconnects the first communication line in a case where facsimile sending instruction information is input to the information input device when the first communication line is in a state of having been connected by the line connecting device, and a facsimile sending device that re-connects the first communication line disconnected by the line disconnecting device and sends facsimile data by utilizing the first communication line in accordance with the facsimile sending instruction information.

Abstract: A line control apparatus having a first interface for connecting to a telephone line, a second interface for connecting to a facsimile apparatus, and a third interface for connecting to a telephone, includes: a first detecting unit that detects a calling signal transmitted from the telephone line and a second detecting unit configured to detect a signal from the telephone line, such signal having a voltage lower than a voltage that the first detecting unit can detect. In accordance with the second detecting unit having detected a signal from the telephone line, the control unit switches from a state wherein the first interface and the third interface are connected to a state of not being connected.

Abstract: A telephony system that accepts inputs, such as account codes, from a variety of devices and interfaces. The system includes a server with a telephony management software (TMS) unit, a telephony application programming interface (TAPI) unit, and an application unit. The application unit includes a control module, a call status module, an endpoint interface module, a storage interface module, a call transfer module, a TAPI interface module, a configuration module, and an extension library module. A server is capable of prompting several devices for an input and then accepting an input from any of the devices. Thus, a server enables a user to initiate a phone call on one device and then input information using a different device.

Abstract: Provided is a method for multiple-termination routing in a wireless network environment that includes an Internet Protocol (“IP”) core. The method includes receiving a call delivery request. The call delivery request is based upon intelligent network protocols and includes a called number. The call features associated with the called number are retrieved, a determination is made whether the call features include multiple-termination routing information for a plurality of potential terminating devices, wherein at least one termination to be routed utilizes Session Initiation Protocol. When the call features include the multiple-termination routing information, call setups are initiated to each of the plurality of potential terminating devices. Upon detecting a first potential terminating device to complete one of the plurality of initiated call setups, any remaining initiated call setup or setups are released.

Abstract: System and method for representing preference and policy in a contact list are described. One embodiment is a graphical user interface (“GUI”) for displaying a directory of contacts of a user. The GUI comprises a list of contacts displayed in a first window of the GUI; for each contact in the list of contacts, a preference and policy category for the contact, wherein the preference and policy category for the contact is displayed in the first window of the GUI; and for each contact in the list of contacts, a feature icon indicative of whether a feature is enabled for the contact according to the preference and policy category for the contact, wherein the feature icon is displayed in association with the contact in the first window of the GUI.

Abstract: The functionality of Advanced Intelligent Network (AIN) components and Internet-based resources are integrated to provide simultaneous visual and telephonic access to an interactive information delivery system. The present invention enhances conventional Interactive Voice Response (IVR) systems by simultaneously providing visual information that corresponds to the voice-based information that is delivered telephonically. A user that contacts a conventional IVR service provider (IVR host) can be provided with the option of a Visual IVR (VIVR) session. The VIVR session can provide visual information to the user in the form of HTML-formatted web pages delivered over an Internet connection and will provide audible message information over a conventional wireless or wireline voice telephone connection. A VIVR session can coordinate the delivery of visual information (e.g., web pages) and the delivery of telephony-based information (e.g.

Abstract: An IP based voice/video communication system and call pickup/forwarding method and a program storage device, readable by a machine, tangibly embodying a program of instructions executable by the machine to perform the call pickup/forwarding method enables a subscriber can have voice/video communication irrespective of time or place by forwarding voice/video calls between voice/video communication terminals such as a TV, PDA and home pad, or by picking up a incoming call at a nearby terminal if it is difficult for the subscriber to answer the call at the originally called terminal from his/her location.

Abstract: An active call handover arrangement for managing a handover between a plurality of telecommunication devices associated with a public extension number is provided. The arrangement includes a mobility server configured to manage a telecommunication session between a telecommunication device of a third-party caller and a first telecommunication device of the plurality of telecommunication devices. The arrangement also includes a switch component configured to be associated with at least one telecommunication device of the plurality of telecommunication devices. At least one telecommunication device is configured to include mobility client software. The switch component is also configured to enable a user to perform the handover between the first telecommunication device and a second telecommunication device of the plurality of telecommunication devices.

Abstract: A method of automatically sharing and transferring information between a Work at Work (WAW) ISDN telephone and a Work at Home (WAH) ISDN telephone. This information includes, calling line identifier delivery from the WAW telephone to the WAH telephone, facilitating subsequent transferring of the call to the WAH telephone if desired. Message waiting status is also shared, facilitating the coordination of message waiting lamps at both the WAW and WAH telephone. Information from one telephone to the other is carried transparently through the ISDN network as user-to-user information, calling party subaddress, D channel X.25 packet message, lower layer compatibility or a combination of these elements. The telephones automatically establish ISDN calls between themselves and swap information pertaining to the status of the companion telephones.

Abstract: A system may receive configuration information relating to forwarding of communications in a network from a first endpoint to other endpoints. Presence information may also be received for the endpoints. The presence information may include proximity information indicating whether pairs of the endpoints are in physical proximity to one another. The system may forward communications destined for a first of the plurality of endpoints to a second of the plurality of endpoints based on the configuration information and the presence information.

Abstract: A telephony system that accepts inputs, such as account codes, from a variety of devices and interfaces. The system includes a server with a telephony management software (TMS) unit, a telephony application programming interface (TAPI) unit, and an application unit. The application unit includes a control module, a call status module, an endpoint interface module, a storage interface module, a call transfer module, a TAPI interface module, a configuration module, and an extension library module. A server is capable of prompting several devices for an input and then accepting an input from any of the devices. Thus, a server enables a user to initiate a phone call on one device and then input information using a different device.

Abstract: A communication system includes a criteria matrix for calculating a dialogue score in response to a request for a dialogue model from a dialogue node within a communication action. The criteria matrix also incorporates a dialogue selection table for selecting an appropriate dialogue type, based on the calculated score.

Abstract: A communication system is provided, in which the communication system includes: a part for receiving a call establishment request from a communication terminal, and sending, to the communication terminal, a call forwarding destination information including information on at least a call forwarding destination; and a part for receiving information on a call forwarding destination which is selected by a caller from the communication terminal, and allowing the communication terminal and the call forwarding destination to communicate with each other according to the information on the call forwarding destination.

Abstract: Systems and methods for integrating analog voice service and derived POTS voice service in a DSL environment are provided. One embodiment is a system comprising: a first communication path for carrying plain old telephone service (POTS) voice signals between a telephone-type device and a subscriber line of a telephone network; a second communication path for carrying derived POTS voice signals between the telephone-type device and the subscriber line; and a switching mechanism configured to switch the telephone-type device between the first communication path and the second communication path.

Abstract: A communication system includes a selection module for selecting appropriate user interface types for nodes within a task. The selection module interacts with a selection criteria library and a user interface dialogue model library to determine an appropriate user interface. Selection criteria library and user interface dialogue model library may be selectively and dynamically adapted to reflect environmental, customer and organization changes.

Abstract: Techniques for configuring multiple audio transducers, including telephony devices, are provided. Audio configurations for the multiple audio input and output transducers can be selected by the user. When it is determined that a telephony device has gone off hook, the audio configuration is changed to utilize the off hook telephony device. When the telephony device goes on hook, the audio configuration can be returned to its original state. The present invention allows multiple audio input and output transducers to be used, for example, in a computer telephony client by efficiently switching between these transducers via configuration changes. According to specific embodiments, the present invention may be provided in an audio transducer switch between the multiple audio transducers and a sound card of a computer, or within a sound card itself.

Abstract: A database having information sought by a consumer, a database containing consumer attributes, and a database of advertising messages are made responsive to telephone calls placed to an interactive voice response (IVR) system. Alternatively, the databases can be linked to a web site responsive to consumer input. Either system can deliver the advertising messages to the consumer. The database of consumer attributes contains information already known about the consumer that can be used to decide on which advertising message to deliver. The consumer initiates activity by calling the interactive voice response system or accessing the web site. Software identifies the consumer via the consumer-inputted identification and delivers an advertising message likely appeal to the consumer. The advertising message can include an offer to purchase a product or service. The offer can be taken during the advertising period and recorded so as to be sent to a sponsor.

Abstract: The present invention teaches the use of a telephone keypad to control operations of an internet/telephone call switching device. Using the present invention, a user can switch from modem usage of a telephone line to receipt of an incoming call, and can switch back to the Internet Service Provider (ISP) with minimum difficulty when the call is terminated. Uniquely, set-up, programming and operations of the present device may be controlled by means of DTMF tones received from the telephone keypad. Operations may be remote, local, the DTMF decoder may be external or internal to the device, codes may be stand alone or only operant in a “command mode”, the device may use DSP, fuzzy logic, look-up tables or other means to decode the DTMF signals. The command code filter may be implemented as hardware or as software. One command code may be a security code preventing unauthorized access and control of the device's operations, set-up, programming or usage.

Abstract: Automated system, method, and computer-readable medium for enabling at least one given caller, who may be either a hearing caller or a hearing-impaired caller, to access functionality associated with at least one resource, such as via a telephone number made available to both hearing callers and hearing-impaired callers. The automated systems can comprise at least one computer-based subsystem adapted at least to receive a call from the given caller; issue at least a first prompt in a first format that requests at least a first response; receive a response after issuing the prompt and the at least further prompt; and route the call so as to provide the given caller access to the at least one resource depending on an analysis of the response. The system can include platforms (specialized or standard) for handling transactions with either the hearing caller or the hearing-impaired caller. Methods and computer-readable media for executing these methods are also disclosed.

Abstract: A facsimile machine that is capable of receiving, transmitting and storing both document images and data transfers, identifying the appropriate device the data transfer is intended for, and providing the data transfer to the appropriate device is disclosed. A facsimile machine is provided with one or more ports for coupling with other office equipment, such as, for example, postage meters, postage scales, personal computers, etc. Data transfers from a service center or the like are received by the facsimile machine and identified as to which device is the intended recipient. The facsimile machine can then send the data transfer to the intended device, or store the data transfer for sending to the intended device at a later time. Accordingly, only a single analog telephone line is required for all of the devices coupled to the facsimile machine.

Abstract: The present home networking method and system is based on the IEEE 802.11 wireless networking standard expanded to encompass home phone line media communication and/or home power line media communication operation seamlessly. For each station in home network (i.e., wireless, phone line and power line), the protocol stack at the PHY layer and above, QoS, and network security are all based on the 802.11 standard. Chipset implementations differ in an applied analog interface that is specific to the respective medium. Station-to-station transmission between wireless and wired terminals is enabled via an intelligent access point which includes an analog interface for each of the medium types. Further, each station can be configured with the appropriate analog interface to communicate directly with any wireless station. The access point is also expandable to form extended service sets.

Abstract: The present invention provides a self-contained distinctive ring detection and utilization device for using a single telephone line to receive telephone calls and facsimiles and recognition of distinctive rings while being simultaneously connectable to the Internet that avoids the disadvantages of the prior art, and a self-contained device for using a single telephone line to receive telephone calls and facsimiles while being simultaneously connectable to the Internet that is simple to use. The present invention further provides a self-contained device using a single telephone line to receive telephone calls and facsimiles, while using distinctive ring features, while being simultaneously connectable to the Internet.

Abstract: An apparatus of the present invention is an apparatus including a communication section for communicating with another apparatus. The apparatus includes: a registration detection section for detecting grouping registration information which is provided to each of a plurality of apparatuses to be grouped and registered; a storage section for storing group information which indicates that the apparatus and the other apparatus are in the same group; and a control section for controlling the communication section, the registration detection section and the storage section.

Abstract: A PC (10) connected to a low-voltage electricity supply system (9) via a mains plug (11) and a mains socket outlet (12), into which the said plug is plugged, exchanges messages with other apparatuses via the said electricity supply system by means of signals whose frequency is between 1 MHz and 40 MHz. In order to suppress high-frequency interference signals which are generated by further apparatuses which are connected to the low-voltage electricity supply system (9) via mains plugs (11′) and further mains socket outlets (12′), arranged in local proximity to the said mains socket outlet (12), or which are produced by reflections of signals at open line ends, an adapter (1) is in each case interposed there, which adapter is plugged into the mains socket outlet (12′) and into which adapter the mains plug (11′) of the respective apparatus is plugged.

Abstract: The present invention comprises an improved telephone system and method that reduce call interruptions to a telephone, i.e., reduce interruptions caused by a caller placing a call to the telephone. If the no-call feature is enabled and a call is received by the telephone, the telephone answers the incoming telephone call in response to receiving the telephone call. The telephone then plays a message to the caller indicating that no calls are being taken. The telephone plays the message after the telephone answers the incoming telephone call. The telephone does not generate an audible ring signal in response to the telephone call received from the caller. The telephone system further comprises an exemption logic unit for allowing calls placed by certain callers to come through even when the no-call feature is enabled. The user indicates the exception parties to the no-call feature prior to receiving a call from an external party or at a later time.

Abstract: Upon detecting an incoming call, a call screening system determines the CALLER ID information associated with the call and compares it to a database of allowable calling parties. If the calling party is to be allowed to ring through, the call screening system routes the incoming call to one or more communication devices associated with the calling party information in the allowable calling party database. In this manner, certain screened calls only ring through to a handset if authorized, while others are authorized to ring through to a fax machine, an answering machine, another handset, or a remote device connected between a remote handset and the local exchange. A single call screening device having several ports thus filters calls to multiple communications devices. Incoming call screening may be selectively different during different times of the day, for different calling parties, or for different communications devices connected to the call screening device.

Abstract: A method and system for configuring and/or re-configuring an office device to satisfy each user's particular needs. Such a system allows a user to determine at user defined intervals, i.e., each use, monthly, or project based, what the user's needs are or will be and then access, via the Internet or intranet or some other means, a service center wherein the user can download or access via a code the desired, appropriate applications for the device.

Abstract: A self-contained device using a single telephone line to receive telephone calls and facsimilies while being simultaneously connectable to the Internet, which provides an all-in-one solution for multiple devices present and operating on a single standard telephone line. The benefits include the ability to receive calls and faxes, whether online or not online and to remain online if already on line. Additionally, the present invention switches between voice and fax calls, automatically and without any intervention from the user. To achieve the combined functions, the present invention integrates a micro-processor which coordinates general functionality. Tone detection circuitry, which provides extremely narrow and selective detection range and detects the appropriate tones. Care is taken to assure a narrow enough detector design which will not false alarm or detect such sound as modem noise, which includes a fax tone and a call waiting tone.

Abstract: A method of automatically sharing and transferring information between a Work at Work (WAW) ISDN telephone and a Work at Home (WAH) ISDN telephone. This information includes, calling line identifier delivery from the WAW telephone to the WAH telephone, facilitating subsequent transferring of the call to the WAH telephone if desired. Message waiting status is also shared, facilitating the coordination of message waiting lamps at both the WAW and WAH telephone. Information from one telephone to the other is carried transparently through the ISDN network as user-to-user information, calling party subaddress, D channel X.25 packet message, lower layer compatibility or a combination of these elements. The telephones automatically establish ISDN calls between themselves and swap information pertaining to the status of the companion telephones.

Abstract: When a sender sends a transmission message to a receiver by use of a communication appliance such as telephone, portable telephone, facsimile or electronic mail, the transmission massage is temporarily received by a computer-telephony integration (CTI) server. The CTI server makes reference to a user contact table to thereby specify a contact point of the receiver at present and the kind of a communication appliance capable of being used by the receiver which are registered in advance in the user contact table. Then, the CTI server sends the transmission message to the receiver after automatic media conversion in accordance with the communication appliance and reception condition which are allowed for the receiver to use. A reception condition requested by the sender may be reflected in a part of the reception condition of the receiver.

Abstract: A telephony device such as a digital telephone or personal computer attaches to phone lines and automatically determines both the type of switch to which is connected, and the type of line card in the switch providing that connection. In addition, device functions and data types supported by the switch and line card are automatically determined, providing a fully automatically configurable device. Programming in the device monitors polling messages provided by the switch and line card having different formats to make the determination. The devices switch between two different flow control types supported by the different line cards, while listening for the polling messages. If a message is not received while using a first flow control type, the second is used. The capability of channel, voice or data, is also automatically determined once the switch type is known.

Abstract: The present invention provides a self-contained distinctive ring detection and utilization device for using a single telephone line to receive telephone calls and facsimiles and recognition of distinctive rings while being simultaneously connectable to the Internet that avoids the disadvantages of the prior art, and a self-contained device for using a single telephone line to receive telephone calls and facsimiles while being simultaneously connectable to the Internet that is simple to use. The present invention further provides a self-contained device using a single telephone line to receive telephone calls and facsimiles, while using distinctive ring features, while being simultaneously connectable to the Internet.

Abstract: A system is provided for connecting received calls, which may be voice or data calls having a common destination identifier associating the calls with a subscriber, to a selected at least one of one or more call options assigned to the subscriber. In one embodiment, the system includes a call detector, a voice call decoder, and a data call decoder. The call detector has an input for receiving the calls. It also has a first output and a second output. The detector provides a received call to the first output if it is a voice call and provides it to the second output if it is a data call. The voice call decoder has an input operably connected to the first output of the call detector for receiving the voice calls. It also has one or more outputs operably accessible to one or more voice call options for connecting the voice calls each to a selected at least one of the one or more voice call options.

Abstract: A system is provided for connecting received calls, which may be voice or data calls having a common destination identifier associating the calls with a subscriber, to a selected at least one of one or more call options assigned to the subscriber. In one embodiment, the system includes a call detector, a voice call decoder, and a data call decoder. The call detector has an input for receiving the calls. It also has a first output and a second output. The detector provides a received call to the first output if it is a voice call and provides it to the second output if it is a data call. The voice call decoder has an input operably connected to the first output of the call detector for receiving the voice calls. It also has one or more outputs operably accessible to one or more voice call options for connecting the voice calls each to a selected at least one of the one or more voice call options.

Abstract: A telecommunications signal routing and data management apparatus for directing incoming telecommunications signals to devices connected thereto, or receiving message signals over a telephone subscriber line from a remote source for display, for receiving and transmitting data to and from a remote source over the telephone subscriber line and for storing received data on a programmable memory module is disclosed. The disclosed apparatus enables the uploading and display of postal rate information, uploading of equipment diagnostic information from a programmable memory module and the downloading of postal rate data onto a programmable memory module. Updating of postal equipment, for example, can be carried out with minimal interruptions to the use of the postal equipment.

Abstract: A telephone wiring terminal for use in an office building environment connects dedicated telephone lines and PBX or KEY telephone extensions to selected office jacks within an office building. The terminal comprises a customer programmable, electronic cross-connect device in the form of a wall mountable chassis-box with an internal non-volatile switch bank, an internal computer system controlling the switch bank, external telephone line connectors leading to and from the switch bank and external programming access to the computer system. The dedicated lines and extensions connect to one set of connectors while telephone lines leading to the jacks connect to a second set of connectors. Programming access may include a keypad and display on the front of the chassis-box, as well as com and modem ports on the chassis.

Abstract: A telephone wiring terminal for use in an office building environment connects dedicated telephone lines and PBX or KEY telephone extensions to selected office jacks within an office building. The terminal comprises a customer programmable, electronic cross-connect device in the form of a wall mountable chassis-box with an internal non-volatile switch bank, an internal computer system controlling the switch bank, external telephone line connectors leading to and from the switch bank and external programming access to the computer system. The dedicated lines and extensions connect to one set of connectors while telephone lines leading to the jacks connect to a second set of connectors. Programming access may include a keypad and display on the front of the chassis-box, as well as com and modem ports on the chassis.

Abstract: Objects of the invention are to enable different kinds of communication apparatus having interfaces of different input/output methods and different signal voltages to be connected to the same interface; to achieve communication processing appropriate to the automatically detected attribute of the communication apparatus; to explicitly indicate optimum communication means; and to enable communications to be automatically resumed even if the communication apparatus is replaced in the middle of communication. The communication apparatus comprises: means for sending the connected state of the communication apparatus and an attribute of the communication apparatus which connected to information terminal apparatus; a signal line for sending a connection notification to the information terminal apparatus; and a signal input section and a signal output section for transferring control signals and data to and from the information terminal apparatus.

Abstract: Upon detecting an incoming call, a call screening system determines the CALLER ID information associated with the call and compares it to a database of allowable calling parties. If the calling party is to be allowed to ring through, the call screening system routes the incoming call to one or more communication devices associated with the calling party information in the allowable calling party database. In this manner, certain screened calls only ring through to a handset if authorized, while others are authorized to ring through to a fax machine, an answering machine, another handset, or a remote device connected between a remote handset and the local exchange. A single call screening device having several ports thus filters calls to multiple communications devices. Incoming call screening may be selectively different during different times of the day, for different calling parties, or for different communications devices connected to the call screening device.

Abstract: A modem which connects to a data terminal is connected to a telephone line capable of supporting multiple directory numbers with each number having a distinctive ring signal. The modem comprises a ring detector which indicates the presence of a ring signal associated with an incoming call from a remote device. The modem also includes a datapump unit capable of processing analog signals associated with a telephone line and digital data associated with the data terminal. A modem controller determines ring type from the ring signal of the incoming telephone call and alters the processing of the incoming telephone call based on the ring type. To that end, the controller may alter the processing of the incoming telephone call by configuring the datapump unit and/or configuring a controller compression/error-correction module based on the ring type before the incoming telephone call is answered.

Abstract: A method and apparatus is disclosed for automatic segregation of signals of different origin, using models that statistically characterize a wave signal, more particularly including feature vectors consisting of a plurality of parameters extracted from a data stream of a known type for use in identifying data types by comparison, which can be Hidden Markov Model based methods, thereby enabling automatic data type identification and routing of received data streams to the appropriate destination device, thereby further enabling a user to transmit different data types over the same communication channel without changing communication settings.