Abstract: Dynamic resource allocation systems, apparatus, and methods are disclosed for selectively improving the ability of a receiver to determine a channel estimate in an Orthogonal Frequency Division Multiple Access (OFDMA) system. A wireless communication system can use a common pilot channel configuration to aid channel estimation in one or more receivers in communication with the system. A receiver in communication with the system may be unable to demodulate received data due to an inaccurate channel estimate. The receiver can communicate to a transmitter in the system a request for additional channel estimation resources. The wireless communication system can provide additional channel estimation resources by inserting dedicated pilot channels into one or more of the frequencies allocated to symbols for the receiver. If the receiver is still unable to demodulate received data, the wireless communication system can incrementally insert additional pilot channels in the symbol associated with the receiver.

Abstract: A method is provided for forming a multi-media communication path between at least first, second and third communication devices coupled to a multi-media provider system during post answer call redirecting and/or teleconferencing. The method includes receiving and processing a first call request at a circuit-based portion of the multi-media provider system for forming a first communication link between the first and second communication devices. Thereafter, predetermined attributes of the first communication link may be sent to an IP-based portion of the multi-media provider system for configuring the IP-based portion of the multi-media provider system to process a subsequent request to execute post answer call redirecting and/or teleconferencing.

Abstract: In general, in one aspect, the disclosure describes a unified simplified maximum likelihood detector to be utilized with multiple input multiple output (MIMO) receivers to estimate transmitted signals. The unified detector includes a common framework capable of being utilized for multiple detection modes and multiple MIMO configurations.

Abstract: A transmitter directed, distributed receiver using multi-user diversity provided by the distribution of the receiver. Advantage is taken of the uncorrelated variations over time in the condition of communication links between a common transmitter and several users. The greater the variation in the quality of a particular link over time, the greater the increase in total system throughput provided. A scheduler metric (or scheduler metric) represents the instantaneous quality of the communication link between each user and the transmitter with respect to the average quality of the link. Alternatively, the scheduler metric represents the instantaneous channel condition with respect to the average data throughput over that channel. The common transmitting station uses the scheduler metric to directly compare the desirability of granting each channel access with the desirability of granting each other channel access. The users with links that have the greatest scheduler metric are provided access to the channels.

Abstract: An interface for use in a telephone communication system provides for connection of a telephone switch to an IP network, allowing data signals between the telephone switch and a VMS to be transmitted by the IP network. In addition to transmission of the signals over an IP network, the interface can be configured to provide additional functionality including translation of the message protocol; connection of the interface to a network operations center; verification of message accuracy and completeness; acknowledgment of the receipt of a message; activation/deactivation of a message waiting indicator; connection to an SS7 network; back-up transmission between the IP network and the switch; and proxy/redirect of voice signals.

Abstract: The invention relates to the representation of ISDN connections, which is independent of the type of connection, in a packet-oriented exchange. By adapting the signaling information, which is transmitted by ISDN connections, in a peripheral adapter, different ISDN connection types can be handled as a standard connection type in the packet-oriented exchange. The adaptation can ensue, for example, with the aid of a conversion table for the useful data references and call identifiers comprising signaling messages. The invention is advantageous in that it involves an uncomplicated representation of ISDN data in the packet-oriented exchange. ISDN connection-related data do not need to be managed in the packet-oriented exchange.

Abstract: A song and ad scheduler supporting clip-based and stream-based scheduling of multimedia items generates several hours of schedule in advance. Having multiple channel capability, the scheduler uses as inputs: the channel, associated playlists, rotation pattern for the channel, and associated programming rules to produce a schedule of multimedia items for the channel. Initially, the scheduler produces a schedule for each channel of predetermined length; then it periodically revisits the channel to add more songs, keeping the schedule to the desired length. Length of the initial playlist is configurable. The scheduler uses a producer-consumer model for distributing work. Producer threads periodically scan the system for work to be done. When a producer thread encounters work to be done, e.g. adding to the schedule of a channel, the producer thread places a work request into a queue. Worker threads consume the work requests by fulfilling the requested work.

Abstract: One embodiment of the invention is a computer controlled method for use with a communication system. The method includes a step of receiving a plurality of communications, where each one of the plurality of communications is from one of a plurality of communication sources; includes a step of mixing (that is responsive to a plurality of floor controls) the plurality of communications for a plurality of outputs associated with plurality of communication sources; and includes a step of analyzing, for a plurality of users associated with the plurality of communication sources, one or more conversational characteristics of two or more of the plurality of users. The method also includes a step of automatically adjusting the plurality of floor controls responsive to the step of analyzing. Other embodiments include systems and devices that use the method as well as program products that cause a computer to execute the method.

Abstract: The method comprises a phase, applied by the first equipment (A), for estimating a first time of flight between the two equipments (A, Z) corresponding to the signal transmission time to go from one equipment to the other along a propagation path, called the “strongest path”, taken by a main part of the energy of the signals, a phase for estimating a difference in time of flight comprising the sending of a channel sounding frame by the first equipment to the second and, from the received radio signals corresponding to said channel sounding frame, estimating a difference in time of flight between the strongest propagation path and a first propagation path, performed by the second equipment, and a phase for calculating the distance between the two equipments (A, Z) comprising the determination of a second time of flight by subtracting the estimated difference in time of flight from the estimated first time of flight (E30) and calculating the distance between the two equipments from the duly determined second ti

Abstract: A system and method for platform resilient VoIP (Voice over Internet Protocol) processing in a partitioned environment. The system comprises a plurality of soft partitions. At least one soft partition is a sequestered partition. The sequestered partition including one or more core processors having a controlled, real-time operating system and at least one network interface card (NIC) coupled to the one or more core processors. The NIC is dedicated to the sequestered partition, and the one or more core processors are used as an offload engine solely dedicated to Voice over Internet Protocol (VoIP) processing.

Abstract: According to one embodiment of the invention a rugged Ethernet switch includes a housing and a passive cooling system associated with the housing and being devoid of fans as operable to cool the Ethernet switch. Ethernet switch also includes software operable to perform at least one of the functions selected from the group consisting of multiple spanning, rapid spanning, cluster management and IGMP snooping and querying. According to another embodiment, a rugged Ethernet switch includes a housing having a plurality of perforations formed therein for cooling the Ethernet switch. The switch also includes a passive cooling system be devoid of fans and that is operable to cool the Ethernet switch. A temperature sensor is operable to measure a temperature of the Ethernet switch is included as is an alarm software responsive to the temperature sensor and operable to initiate an alarm when a measured temperature of the Ethernet switch exceeds a particular limit.

Abstract: A method and system for coordinating a Voice Over Internet Protocol (VoIP) teleconference. A teleconference operator drags the name of invited attendees into a hot window, which connects the invited attendees to a channel for the teleconference. Each invited attendee's name has a status icon associated with it, indicating if the invited attendee is active in the teleconference. Each invited attendee has access to a Graphical User Interface (GUI) that permits the attendee to toggle back and forth between different teleconferences.

Abstract: Methods, systems, and computer program products for providing dynamic Quality of Service (QoS) for connections to virtual private networks (VPNs) are provided. The method receives a message from an organization associated with the VPN, wherein the message includes information identifying the VPN connection and information associated with the organization. The method then determines, based on a set of rules defined for the organization, a QoS level to apply to the connection, and applies the determined QoS level to the connection. The QoS applied to the connection corresponds to the organization hosting the VPN and not the QoS associated with a personal or home account QoS that would otherwise be applied to the connection.

Abstract: According to an embodiment of the present invention, there is provided a system for establishing a connection between a first and a second communication device. The first communication device supports separate voice and data channels and is arranged for sending a pair of a first and second establishment requests, the first request being sent via the data channel and the second request being sent via the voice channel. The system comprises a proxy for receiving the first request via the data channel, and a gateway for receiving the second request via the voice channel. The gateway is arranged to forward the received request to the proxy and the proxy is arranged to forward the earliest received request of the pair of requests to one of a plurality of call control servers for processing.

Abstract: A first communication channel is established between a first entity and at least one second entity and a second communication channel is established between the first entity and at least one third entity over the network. Then, data associated with the first and second communication channels are recorded. Next, first, second, and third entities are dynamically monitored to identify if first, second, or third entities is in an active or inactive state, and based upon such monitoring, recorded data are either synchronously rendering to entities in an active state or asynchronously rendered to entities in an inactive state upon the entities in the inactive state transitioning from an inactive state to an active state.

Abstract: A temporary (temp) dedicated channel (DCH) is used to support communications. The temp-DCH channel is a channel that is assigned to a user having a set duration. After the duration expires, the channel is automatically released to the user. Embodiments of the invention relate to establishing the temp-DCH channel, determining the data rate and duration of the channel. Other embodiments relate to establishing back-to-back temp-DCH channels and the implementation details of these embodiments. Additionally, one embodiment relates to adding a start/stop function to the medium access controller which can be used in conjunction with temp-DCH as well as other applications.

Abstract: In a method of transmitting control signals for uplink transmission of packet data in a communication network, control signal data related to scheduling a user for uplink transmission of packet data is transmitted over a single control channel. The single control channel may be configured based on the transmission mode the user is in for scheduling an uplink transmission from the user to the network, so that only one control channel is used, regardless of the transmission mode the user is in for scheduling the user for the uplink transmission. The control channel may be embodied as a sub-frame adapted to carry control information that is dependent based on the transmission mode the user is in for scheduling an uplink transmission from the user to the network.

Abstract: Methods, systems, and computer program products for reducing the likelihood of signaling link congestion on a failing or recovering signaling linkset are disclosed. According to one aspect, a method for reducing or eliminating congestion on a recovered link in a previously failed linkset due to the routing of post-global title (GT) translated signaling message traffic is disclosed. When the first link in a previously failed linkset becomes available, routes associated with the recovering linkset are marked as restricted. GT translated messages are directed to the lowest cost route that is marked as allowed. If no routes are marked as allowed, messages are directed to the lowest cost route that is marked as restricted. When a predetermined number or percentage of the links in a linkset become available, routes associated with the recovering linkset are marked as allowed.

Abstract: Assigning inbound ringing ISDN channels to a particular endpoint's call uses a framing listening technique to distinguish between H.221 framing, master bonding channel framing and slave bonding channel framing. If the channel is receiving Master Bonding Channel framing, the MCU detects that this is a new call from a unique far endpoint and may then begin a process to address this new call. If the channel is receiving Slave Bonding Channel framing, the MCU then transmits a multi-frame pattern and looks for a Physical Video Unit Identifier the MCU sent to this far end via the Master Channel upon initial negotiation. If the channel is receiving H.221 framing, a H.243 terminal address assigned using a Terminal Indicate Assignment (TIA) message in the initial channel is used. The far endpoint may then send this address in its additional channels through the use of a Terminal Indicate Additional Channel X (TIX) message.

Abstract: Method for dynamically optimizing bandwidth allocation in a variable bitrate conference environment. Conference means with two or more outputs are provided, where each one can output data at different rates, in order to support two or more endpoints which may have different media rates. Two or more endpoints are connected to these conference means for participating in the conference. Whenever more than one video rate is used by participants during the conference, each set of output rates is selected from all possible combinations of output rates in the conference means, wherein the lowest output rate in each selected set is the entry rate of the endpoint joining the conference at the lowest rate. A Quality Drop Coefficient (QDC) for each endpoint that joins the conference is determined for each selected set, wherein the QDC is computed according to the endpoint entry rate and the highest rate, among the output rates of each selected set, that is lower or equal to said endpoints' entry rate.

Abstract: A switching system and method are provided to facilitate use of videoconference facilities over a plurality of security levels. The system includes a switch coupled to a plurality of codecs and communication networks. Audio/Visual peripheral components are connected to the switch. The switch couples control and data signals between the Audio/Visual peripheral components and one but nor both of the plurality of codecs. The switch additionally couples communication networks of the appropriate security level to each of the codecs. In this manner, a videoconferencing facility is provided for use on both secure and non-secure networks.

Abstract: Briefly, in accordance with one embodiment of the invention, a wireless communication system may adaptively switch between a multiple input, multiple output mode and a spatial division, multiple access mode based at least in part on channel conditions and traffic conditions.

Abstract: In one embodiment, the invention provides a method comprising loading a set of transport components into a memory; initializing each transport component of the set of transport components to listen on a particular conferencing interface using a listen string to associate with a network interface, each transport component of the set of transport components listening to a different conferencing interface, the listen string encapsulating parameters to one or more calls to listen; receiving an incoming call signal on the network interface having an incoming conferencing interface; processing the incoming call signal to detect the incoming conferencing interface; and launching an application based on the incoming conferencing interface. Other embodiments of the invention are also described.

Abstract: A song and ad scheduler supporting clip-based and stream-based scheduling of multimedia items generates several hours of schedule in advance. Having multiple channel capability, the scheduler uses as inputs: the channel, associated playlists associated, rotation pattern for the channel, and associated programming rules to produce a schedule of multimedia items for the channel. Initially, the scheduler produces a schedule for each channel of predetermined length; then it periodically revisits the channel to add more songs, keeping the schedule to the desired length. Length of the initial playlist is configurable. The scheduler uses a producer-consumer model for distributing work. Producer threads periodically scan the system for work to be done. When a producer thread encounters work to be done, e.g. adding to the schedule of a channel, the producer thread places a work request into a queue. Worker threads consume the work requests by fulfilling the requested work.

Abstract: A system that can receive information from a plurality of simultaneous remote conferences and scan the information for a key indicia. Upon determining that a key indicia is present in the information, the system is operative to alert a user.

Abstract: To provide CTI services or features via a communication channel having a plurality of communication connections, after communication of a request for a CTI service or feature for a selected communication connection, an assignment between a device ID, a connection ID and the requested CTI service or feature is established. A control sequence for setting the requested CTI service or feature is invoked, specifying an assignment identifier designating the assignment between the device ID, the connection ID and the requested CTI service or feature as the transferred parameter. The control sequence invoked is processed with evaluation of the assignment identifier to provide the requested CTI service or feature.

Abstract: In particular embodiments of the present invention, a method for bypassing an output queue structure of a switch is provided. In a particular embodiment, a method for bypassing an output queue structure of a switch includes receiving a packet at an input port of a switch, storing the packet in a memory of the switch, and generating a forwarding request associated with the stored packet and with a particular output port of the switch, the forwarding request identifying the location in the memory of the stored packet. The method also includes determining whether to cause the forwarding request to bypass an output queue structure associated with the particular output port. The method further includes, using the forwarding request, retrieving from the memory the packet associated with the forwarding request and sending the retrieved packet from the particular output port.

Abstract: The communication system includes multiple participating devices connected with each other by a data line. At least one connection device for connection to a corresponding participant device defined as associated with it is connected to the data line. The communication system is preferably an IP network and with respective connection devices defined as associated with corresponding participating devices, which are used to connect portable operating and display terminals with the participating devices. For definite identification of the corresponding participating device associated with the respective connection devices, the connection devices include readable means of identifying the corresponding participating device, e.g. including a stored IP address, which is readable by the connected interface device, i.e. the terminal.

Abstract: In an ANS used for a television conference between calling and destined conference room terminals accommodated in an ATM network, an address of each conference room terminal is stored in an address database as address resolution data which have no hierarchical structure and which therefore uniquely define each conference room terminal. A priority level of each conference room terminal is also stored in the address database and is referenced on occurrence of congestion so as to determine whether or not a connection is released during a conference. Reservation data may be stored in the ANS together with topology data and connection data.

Abstract: A radio apparatus, to be used as a first ending node of a communication network, is connectable to a hands-free apparatus by a local radio link to form a hands-free system. A call made on the hands-free apparatus for an second ending node in the communication network is sent to the radio apparatus through a control channel on the local radio link. The radio apparatus and the hands-free apparatus arrange a voice channel to be established on the local radio link. The call is then sent to the second ending node. In a case where no voice channel is established within a predetermined time period after arranging the voice channel, the radio apparatus cancels the call to prevent a connection between the radio apparatus and the second ending node from being kept and charged.

Abstract: An application module interface is disclosed that allows one or more modules to access voice or data channels in a private branch exchange environment that contains one or mole B channels (bearer channels) for transmitting voice or data signals, and one or more D channels (signaling channel) for transmitting data. The application module interface provides a control channel that allows a module to obtain and vary the status and configuration of a telephone terminal. The application module interface provides access to both directions of two B channels (B1 and B2) and one D channel. The application module interface is the only interface required to connect the two B channels (B1 and B2) and one D channel to or from the telephone terminal and the add-on module. A frame format includes a start bit (logic “1”), a number of data bits allocated to the D channels (D, D?) and B channels (B1, B1?, B2, B2?), and eight stop bits (logic “0”).

Abstract: An ISDN alarm notification (fault locating) system in subscriber transmission equipment is connected to switching equipment conforming to TR-303 standard, in particular. The system includes a controller for setting switch options in subscriber transmission equipment externally, in addition to a digital switch and subscriber transmission equipment. The subscriber transmission equipment is provided with a switching equipment interface unit, a control path unit, and an ISDN subscriber interface unit. The controller sets the switch options provided in the switching equipment interface unit, the control path unit, and the ISDN subscriber interface unit. Thereby each switch option performs identical function, corresponding to each digital switch connected to the subscriber transmission equipment.

Abstract: A system is disclosed that provides a telephony interface device with a modular protocol stack. The interface device downloads protocol modules from a system controller and processes received signals using a core signal handler in combination with the appropriate protocol module for the received signal.

Abstract: A method and system of mixing audios to convert a plurality of input voices into a single output voice is described. The system of mixing audios has a decoding device, an audio mixing device and a frame package unit. The input voices including a plurality of audio frames are partially decoded to acquire audio parameters of the input voices by the decoding device. One audio frame of the input voices is selected by the audio mixing device to obtain a target frame according to the audio parameters later. The target frame is then packaged so as to be identical to the original format of the input voices by the frame package unit.

Abstract: A method and apparatus for auto-detection of ISDN BRI services available for use by terminal equipment is disclosed. This auto-detection provides a variety of simulated call activity stimuli to the ISDN switch peered with the terminal equipment, thus exercising secondary ISDN features such as call conferencing, call forward, call transfer, and X.25/D channel data transfer capability in a manner that can be detected by the terminal equipment. For instance, the call conferencing feature can be detected by having the terminal equipment place a call to it's own directory number using one B-channel, answering the call on the other B-channel, and then attempting to add a third party to this call. By evaluating the messages returned from the switch during the attempted third party addition, the auto-detection process can determine whether the call conferencing feature is available.

Abstract: When a program transmission apparatus divides a program into a plurality of partial programs before transmission, a program reception execution apparatus executes a partial program when the partial program has already been received, and, when the execution needs to proceed to from a present partial program to a next partial program, executes the other partial program when the next partial program has been received.

Abstract: A user of a wireless device, such as a mobile phone, can make purchases or obtain information via a network, such as the Internet, using both voice and non-verbal methods. Users can submit voice queries and receive non-verbal replies, submit non-verbal queries and receive voice replies, or perform similar operations that marry the voice and data capabilities of modern mobile communication devices. The user may provide notification criteria indicating under what conditions a notification should be sent to the user's wireless device. When purchasing opportunities matching the selected notification criteria become available, the user is notified. The user can respond to the notification, and immediately take advantage of the purchasing opportunity if he so desires. Mixed-mode interactions can also be used by sellers to more advantageously control the marketing of distressed, time sensitive, or other merchandise/services.

Abstract: A method for controlling connections in a communication network including setting up a signaling connection between a subscriber of the communication network and a service access system based on a service connection request by the subscriber; and setting up a payload connection associated with the signaling connection only between the service access system and the subscriber given data traffic for the service and clearing down the payload connection after the data transmission.

Abstract: A method and a gateway provide for down speeding the data rate at the circuit switched side of a call being translated in the gateway if the packet switched side does not have sufficient bandwidth capabilities for matching the circuit switched data rate. The gateway compares the bandwidth of the circuit switched and packet switched sides of a call after establishing the connection. If the packet switched side of the call is connected at a lower rate than the circuit switched side, e.g., because of insufficient capabilities of the packet switched endpoint, the gateway initiates a down speeding procedure at the circuit switched side. The down speeding procedure disconnects a number of B-channels of the circuit switched connection to make the call rate equal or lower than the call rate of the packet switched side of the call.

Abstract: Data communicated on one wireless channel is converted and communicated via a wired line. Alternatively, data communicated on a plurality of wireless channels is bundled and communicated via a wired line using a number of channels smaller than that of the wireless channels. In a case where another wireless communication apparatus wishes to use a wireless communication channel when a plurality of wireless channels are being used for communication, some of the plurality of wireless channels are released, thereby making it possible for the other communication apparatus to perform communication even when communication is being carried out using the plurality of wireless channels. When communication by the other wireless communication apparatus subsequently ends, communication on the original number of wireless channels is resumed.

Abstract: A system for maintaining a plurality of media conferences includes digital signal processors (DSPs) and a system resource management (SRM) module coupled to the DSPs. Each DSP receives input data packets from conference participants, processes the input data packets to generate output data packets, and communicates the output data packets to the conference participants. The SRM module may migrate a media conference from a first DSP to a second DSP.

Abstract: A multi-line telephony system and method deliver multiple concurrent telephone conversations to a customer premise via a single traditional twisted-pair communications connection, and support telephone services via a traditional dial-up connection. Improved packet-based communications are performed using the multi-line telephony system and method with better transmission characteristics, such as transmission speed, over traditional twisted-pair wire connections to provide H.

Abstract: The invention includes a system for processing telecommunications signaling. Signaling for a call is received into a signaling processor. The signaling processor processes the call and generates new signaling incorporating the processing. The new signaling is transferred to network elements as appropriate. The signaling processor is not coupled to a switch matrix and only communicates with the network elements over signaling links.

Abstract: A method and apparatus for performing an operability test on a communications system device such as a cable modem is provided. The testing method comprises the steps of providing a set of output test data to the communications system device being tested, and generating an output signal with the device in a manner that is responsive to the output test data. In the case of a cable modem, the output signal is generated by the modem's modulator. The output signal is then provided as an input to a reflective mixer which generates a reflected signal in response to the output signal and directs it back into the communications system device being tested. The communications device can then use the reflected signal to generate a set of input test data that can be compared to the output test data to check the accuracy of the device's operation.

Abstract: A method and apparatus for providing unified conferencing services in a telecommunications system is described. A DSP chip in the system contains an internal CPU and on-chip memory storage device. The CPU is programmed such that when a conference has been established, the time slots or channels of PCM information are collected and stored. Channels are sub-sampled at a pre-determined optimal time interval. The energy for each sub-sample, which is a mathematical summation over time utilizing a sum of squares equation, is calculated for each channel. These calculated energies are stored in an associated array. The energies are surveyed to select the N loudest channels. The input signals (the voice information) for those N loudest channels are used to form the conference. More specifically, the sum of the N loudest channels is generated. This sum forms the basis for a broadcast output.

Abstract: A method and apparatus for auto-detection of ISDN BRI services available for use by terminal equipment is disclosed. This auto-detection provides a variety of simulated call activity stimuli to the ISDN switch peered with the terminal equipment, thus exercising secondary ISDN features such as call conferencing, call forward, call transfer, and X.25/D channel data transfer capability in a manner that can be detected by the terminal equipment. For instance, the call conferencing feature can be detected by having the terminal equipment place a call to it's own directory number using one B-channel, answering the call on the other B-channel, and then attempting to add a third party to this call. By evaluating the messages returned from the switch during the attempted third party addition, the auto-detection process can determine whether the call conferencing feature is available.

Abstract: A data center for providing access to subscriber information from a remote enterprise network in real-time is presented. The data center includes a data network interface system for interfacing with a data network and a login system, which includes a login server and a data center messaging server. The login server receives a request inputted by a subscriber on a remote access device across the data network to access the subscriber information and authenticates the subscriber and the remote device, while the data center messaging server hosting the subscriber information. Upon authenticating the subscriber and the remote device, the login server, accesses the subscriber information on the data center messaging server and provides the subscriber information to the remote access device in response to the received request.

Abstract: A method, and apparatus in an ISDN system form a setup message at a source ISDN terminal where the setup message includes a resource coordination message containing the communication attributes of the source terminal. The ISDN source terminal sends the setup message to an ISDN switch, where the ISDN switch implements a central resource coordination mechanism that extracts the source terminal attribute information. The ISDN switch sends an inquiry message over a D channel to a destination terminal so as to ascertain the communication attributes of the destination terminal, which are reported to the ISDN switch in a reply message. In light of the communication attributes of the source terminal and destination terminal, the ISDN switch and central resource coordination mechanism therein, compares and allocates ISDN communication resources and identifies common attributes.

Abstract: Disclosed are call processing methods which are performed by a network terminator located at a subscriber's premise. The network terminator is coupled to a digital network and a communication device at the subscriber's premise and can perform call waiting, caller identification, call conferencing without intervention from a telco's switching system that requires an additional charge to the subscriber for these services. In addition, the network terminator can perform a method which allows two digital communication devices coupled to one S-bus to share a communication session. In another embodiment, up to a six way conference call can be established with an analog telephone coupled to an ISDN network via the network terminator of the present invention.

Abstract: The invention relates to a method for implementing a service in a digital multiple-service network comprising an exchange, a first telecommunication terminal connected to the multiple-service network via a first interface and a second telecommunication terminal connected to the multiple-service network via a second interface. In the method, the service is implemented using a server connected to the multiple-service network via a third interface, and the service information is transmitted to the second telecommunication terminal using channels reserved for signalling and a signalling protocol between the terminals and the exchange and between exchanges that comprises a limited amount of information not belonging to the call.