Abstract: The present invention relates to a terminal-to-terminal communication connection control method using an IP network characterized in that: in order for a mobile telephone set to have a telephone communication with a fixed telephone set by way of a mobile communication network and an IP network, the mobile communication network carries out a line connection control based on the common channel signaling system; the IP network establishing a communication path by carrying out a line connection control applying a common channel signaling system to the IP network thereby effecting a telephone communication.

Abstract: A band control system of the present invention is applicable to a digital subscriber line network in which a first apparatus and a second apparatus situated at a subscriber station and a center, respectively, are interconnected by a metallic cable for interchanging at least a digital data signal with each other. The band control system includes a commanding device included in one of the first and said second apparatuses for monitoring the receipt of ATM (Asynchronous Transfer Mode) cells from the other apparatus and sending, based on the result of monitoring, a band variation command to the other apparatus to thereby cause it to vary a band by using a frequency band not used for signal transfer. A band varying device is included in the other apparatus for receiving the band variation command and varying the band in accordance with the command.

Abstract: A communication system of automatically setting basic data of VoIP devices in which every VoIP device sends the respective MAC address to the call agent subject to DHCP after connection of the VoIP devices to the Internet, requesting for the related setting data of the VoIP devices at the call agent so that the call agent searches the setting data of every VoIP device subject to DHCP upon receipt of the request from every VoIP device, and then automatically distributes the setting data to every VoIP device.

Abstract: A radio link control (RLC) entity (200) supports plural TCP connections across a radio interface and is employed with or in a radio access network. The radio link control (RLC) entity processes RLC protocol data units (PDUs) obtained from a medium access control (MAC) layer to obtain Internet Protocol (IP) packets for the plural TCP connections. The radio link control (RLC) entity uses availability of Internet Protocol (IP) packets for a given TCP connection to control separately for the given TCP connection in-sequence delivery to an Internet Protocol layer of Internet Protocol (IP) packets without regard to availability of Internet Protocol (IP) packets of another of the plural TCP connections. The radio link control (RLC) entity has both a sending side (which sends RLC PDUs to the lower level medium access control (MAC) layer) and a receiving side (which receives RLC PDUs from the lower level medium access control (MAC) layer).

Abstract: A packet converting apparatus and method is disclosed, in which audio packet data of various types used in cable/radio networks can effectively be converted. The packet converting apparatus includes a bit unpacking unit for bit unpacking first type packet data, a parameter inverse quantization unit for inverse quantizing the unpacked data to obtain a main parameter of the first type packet data, a parameter converter for converting the obtained main parameter to a parameter of second type packet data through inter-frame interpolation, a quantization unit for quantizing the second type parameter converted by the parameter converter, and a bit packing unit for bit packing the quantized data to reassemble the bit packed data to second type packet data and output the second type packet data to a destination.

Abstract: A duplicate point code routing node is capable of routing messages to nodes having the same point code but being located in different national networks. The duplicate point code routing node associates a group code with received messages and uses the group code to route the messages to the appropriate national network. The group code may be determined based on the link or linkset from which a message is received or from the message itself.

Abstract: The present invention concerns a method for remotely powering at least one board or card interconnected with an other board or card, via a link point to point comprising at least two pairs of wires or lines, said cards or boards being mounted in a common backpanel and said other board or card incorporating a power source and/or being connected to an external power source, whereby electrical power is supplied over said linking wires or lines by means of a phantom circuit using both pairs of wires or lines.

Abstract: The present invention relates to switching in electronic networks. Many data transmission protocols and technologies used in such networks, such as TCP/IP and Ethernet, use variable-length packets for transmission. Often however, the nodes that make up these networks typically contain high-speed cell switches that only support fixed-size data units. To support variable-length packets in such a fixed-size cell switch non-interleaving switching and transmission must be offered. The present invention provides such a solution in essence by segmenting a variable-length frame into a plurality of fixed-length cells including a start-of-frame cell, one or more continuation cell(s), and an end-of-frame cell and routes said fixed-length cells through said switch, thereby providing, at an output of said switch, subsequent and deadlock-free transmission of consecutive cells of a certain frame, and block any cell of a different frame from interleaving.

Abstract: The basic idea of the present invention is to enhance functionality of the Signaling Relay Function for support of MNP (MNP-SRF) so that the normal HLR query in the circuit switched domain is bypassed and the call is routed to an IMS domain. The SLRF, upon receipt from a GMSC a SRI message containing the real MSISDN number of the called party, translates the MSISDN number to a new MSISDN number and responds to the query by sending a message containing routing information to the IMS domain and the new MSISDN number. Alternatively, the original MSISDN number is used in the response message but a certain identifier is then added into the message. Then the called subscriber is first tried to reach in the IMS domain where the subscriber is likely residing. In case the subscriber yet resides in the circuit switched domain the call is routed from the IMS domain back to the circuit switched domain and not until then the normal HRL query is performed.

Abstract: A method comprises the steps of directing a call intended for a mobile (531) to a virtual tandem switch (501). The virtual tandem switch (501), which may include multiple converters (505 and 507) queries a home location register to obtain call information for the mobile (531). The call to the mobile (531) is set up over a packet-based transport network (523).

Abstract: A full services access multiplexer (315) is described. A master digital subscriber line (master DSL) modem (303) is coupled to a conductor pair (309). A POTS extender (301) also is coupled to the conductor pair (309) and may sense the operation of a fallback or other signal on the conductor pair (309). A suppression signal may be transmitted to master DSL modem (303) upon occurrence of the fallback. The suppression signal may travel over a control circuit (305). Traffic over a backplane (307) or other network segment may be uninterrupted to a Integrated Access Device (IAD) (105) by handling signals inbound and outbound to the backplane (307) via packet assembler and disassembler (PAD) (353). PAD (315) may transmit a data stream to vocoder (351) and received a data stream from vocoder (351) for injection onto the backplane (307).

Abstract: A network switch includes multiple interface cards and a backplane that interconnects the interface cards. The interface cards receive network traffic and perform time and line switching on the data. The network traffic can include a combination of time division multiplexed (TDM) data and network data (e.g., ATM cells, IP packets). In one embodiment, the channels that carry network traffic to the interface cards are pre-configured as either TDM channels or network channels. The channels are processed as appropriate for their respective types by the interface cards. Because both TDM and network traffic can be processed by a single interface card, the number of cards within the network switch can be reduced.

Abstract: A technique for assigning an address (“shadow address”) to a mobile station that is compatible with the layer-2 address on the wireline network which serves the mobile station. The shadow address is then used as a wireline identifier for the destination address for frames ultimately destined for the mobile station. The shadow address is stored in a watch list for serving base stations, and any base station receiving a frame with a shadow address in its watch list process the frame to forward it the to mobile station. In this way, the shadow address facilitates carrying out soft handoff and smooth handoff.

Abstract: The packet loss in a wired section is reported to a receiving terminal (61) using a loss notification packet from a gateway (62) located at the boundary between a wired section and a wireless section, and thus the causes for packet loss are separated. Also, using this loss notification packet, the packet loss rate in the wired section and the wireless section are separately calculated and the transmission rate and robustness of the data packets are determined with a sending terminal (60) in accordance with the respective loss rate of the sections.

Abstract: A multimedia data network (MMN) operating according to a packet switched standard and a circuit switched network (TABX) are connected without a gateway (GW). The circuit switched network (PABX) comprises a multimedia controller (MMC) which receives signaling messages from multimedia terminals (MT) and controls the switching resources (SW) of the circuit switched network (PABX) on the basis of these signaling messages during a call set-up. The multimedia controller (MMC) makes the multimedia terminals (MT) normal extensions of the extension space of the circuit switched network (PABX). Therefore, multimedia terminals (MT) and normal telephony terminals (TT) can perform a data exchange through the switching resources (SW) controlled by the multimedia controller. Additionally, the multimedia controller (MMC) can provide supplementary services of the circuit switched network to the multimedia terminal (MT).

Abstract: This invention discloses a method for configuring a security-aware networking device in manner which is secure and still easy for users and administrators.

Abstract: A multicast address method for facilitating communication between nodes in “all IP” architectures that support CDMA soft handoff via IP multicasting wherein a multicast DHCP server allocates IP multicast addresses to mobile terminals from administratively scoped IP multicast addresses. IP multicast addresses are allocated to mobile terminals by offering, assigning, and distributing IP multicast addresses to the mobile terminals in response to IP multicast address requests from the mobile terminals to the multicast DHCP servers, which use unique mobile terminal identifiers to correlate mobile terminals with their prior and current IP multicast addresses. A multicast agent generates unicast IP address tables that map each of the unicast IP addresses, and edge routers use the unicast IP address tables to replace unicast IP addresses with their corresponding IP multicast address.

Abstract: The present invention sets forth a network-centric service distribution architecture and method that integrates a wireless access system/service in the residence, SOHO, business or public environment through the use of a local broadband network, such as a Residential-Business Broadband Network (RBN), to the service provider's broadband transport network and to a service provider's broadband packet network that facilitates end-to-end packet telecommunication services. The Media Terminal Adapter is coupled via the RBN to the access port(s) and via the service provider's broadband transport network to the service provider's broadband packet network. The access port is coupled to the Media Terminal Adapter via either a RBN (e.g., a Local Area Network—LAN) or simply via a traditional POTS line interface. The access port receives and sends wireless signals to a plurality of RBN devices, allowing the user to control these, devices remotely from the residence, business, SOHO or public environments.

Abstract: An integrated packet switching and circuit switching network for transporting data received from a plurality of sources across the network as one of packet switched packets and circuit switched packets. The network comprises one or more input transitional switches, one or more output transitional switches, and one or more one core switches, including a packet router and a time divided-space switch, connected between the input transitional switch and the output transitional switch by time division multiplexed communication links. The communication links transport the received data in a plurality of fixed length time slots occurring within a periodically repeating cycle signal. Packet switched packets received at the core switch are switched by the router according to information within a header in each packet switched packet. Circuit switched packets received at the core switch are time-division-space switched according to an allocation of specific ones of the time slots.

Abstract: A system for guaranteeing bandwidth for transmitting data in a network. A path generation engine determines a data paths across a network according to preselected criteria. A scheduling engine determines schedule appointments for data packets to traverse each link in the network including compensation for transmission delays and switch latencies. Scheduling data is communicated to schedule-aware switches and endpoints so that appointment times are reserved for transmission of the scheduled data packets. Real-time transmission of data can be guaranteed in both directions along the transmission path.

Abstract: To facilitate handing of headers for Internet-transmissible packets, a radio access network sends to a mobile station (MS) a message which downloads configuration options for each of corresponding plural header adaptation strategies. The mobile station (MS) elects one of the plural header adaptation strategies and includes the elected strategy in a return message, whereby the radio access network configures a radio bearer for packets to be transmitted between the radio access network and the mobile station. In a first illustrated mode of implementation of the invention, the radio access network is a GSM/EDGE radio access network, with the downloading message being a radio bearer setup message and the return message sent from the mobile station to the radio access network being a radio bearer setup complete message.

Abstract: A mobile communications system that uses IP packets to transmit data between end nodes, such as mobile devices, is described. In order to facilitate session establishment, maintenance, security, and handoff operations, access nodes through which end nodes communicate with one another include a session signaling server module and a mobility agent module. The session signaling server module may be implemented as a SIP server while the mobility agent module may be implemented using Mobil IP signaling. The mobility agent and SIP server within an access node are identified using a single shared identifier, IP address. The same security method and common secret may be used to provide security with regard to both mobile IP messages and SIP messages. Sessions admission decisions and resource allocation for admitted sessions can also take place internally to the access node of this invention without need for signaling to external elements.

Abstract: Disclosed is a novel telecommunications network architecture employing an application layer, a call control layer and a transport layer composed of seamlessly integrated Key Network Components. Additional applications such as billing on the Web Portal may be added or modified without affecting the call control layer which may be a Softswitch or Integrated SIP device. The transport or infrastructure layer acts as a media gateway and can be migrated to new platforms without affecting the call control layer or application layer. The network is of an open architecture and various features can be added to the network as required. The network can be distributed with the call control layer separated from the transport layer to provide efficiencies or redundancies within the public communication network. A configurator function automatically installs new devices or services at the request of a customer. A traffic management engine routes called based on quality of service.

Abstract: A technique for assigning an address (“shadow address”) to a mobile station that is compatible with the layer-2 address on the wireline network which serves the mobile station. The shadow address is then used as a wireline identifier for the destination address for frames ultimately destined for the mobile station. The shadow address is stored in a watch list for serving base stations, and any base station receiving a frame with a shadow address in its watch list process the frame to forward it the to mobile station. In this way, the shadow address facilitates carrying out soft handoff and smooth handoff.

Abstract: The invention relates to a communications system which provides enhanced voice and data communications over the internet between users either at or remote to their local computer and other users or specific services over the internet.

Abstract: A method for transmitting connection setup parameters of a packet data network on broadcast control channels in a telecommunication system, which comprises at least one cell which uses a circuit-switched and a packet-switched broadcast/common control channel. At least one mobile station supports the packet data network, the mobile station being arranged to listen to at least one of said broadcast/common control channels. The connection setup parameters of the packet data network are transmitted to mobile stations in the cell on both broadcast control channels if the cell supports the transmission of the connection setup parameters of the packet data network on both broadcast control channels. The mobile station transmits a DCCM indication to the packet data network if the mobile station is able to receive control messages on both common control channels, and the telecommunication system is controlled to transmit control messages to the mobile station on one common control channel.

Abstract: A dynamic private network (DNP)(100) for use in a tele or other communications infrastructure (102) to communicate between customer premises equipment CPE (30) via a network matrix (26). A DPN router (104) connects logical networks (106) having the CPE (30) to a datapath node (152).

Abstract: A softswitch at a network operations center (NOC) is in data communication with one or more enterprises. The softswitch performs call processing, mobility management, and media connection switching and signaling to provide communications capabilities including basic and enhanced calling features to mobile devices at the enterprises. The softswitch routes control signals for calls between the enterprises and the NOC, but routes call media on the most efficient point-to-point paths between the devices on the calls. This routing reduces the amount of bandwidth required between the enterprises and the NOC and provides economies of scale, thereby allowing a centralized NOC to efficiently support multiple enterprises. Each enterprise has an internet protocol (IP)-based network coupling one or more base station transceivers for providing coverage to the mobile devices. Each enterprise optionally has a media gateway connected to the IP network and a private branch exchange and/or public telephone network.

Abstract: A network router management interface for use in configuring a router and obtaining operational information provides an application programming interface (API) that permits clients to formulate requests and receive replies according to an extensible markup language such as XML. The router may transform a login stream at a router command line interface (CLI) to implement the XML-based API. For example, the management server accepts input from the CLI and, upon receipt of a particular command from the client, transforms the CLI into a programmatic interface for exchange of XML-tagged requests and XML-tagged replies according to the XML-based API. Providing access to the XML-based API via the CLI login shell enables the use of standard login, security, authentication and authorization techniques.

Abstract: The present invention provides a method for synchronizing call signaling and voice circuit setup in a telephone call between an initiating and destination PSTN switch passing through a packet switched network. The packet switched network has Media Gateways (MGs) that interface with the PSTN switches through voice trunks, and Media Gateway Controllers (MGCs) that control and instruct the MGs. The PSTN switches send Signaling System 7 (SS7) call signaling messages to each other through the MGC. To synchronize the call signaling and voice circuit setup, the MGC delays the effect of these SS7 messages until the MGs are initialized using Media Gateway Control Protocol (MGCP) commands. This delay is achieved by modifying the messages from the initiating switch, by imposing some requirements for the destination switch, such that the destination switch is forced to delay seizing the voice trunk from its side until further commands are sent from the MGC.

Abstract: A system and method of providing a prepaid subscriber service to a mobile subscriber in an integrated wireless telecommunications network having a circuit-switched portion and a General Packet Radio Service (GPRS) packet-switched portion. A prepaid subscriber class (PPSC) is stored in a home location register (HLR), and the PPSC is sent from the HLR to a serving mobile switching center (MSC) when the subscriber registers in the circuit-switched portion of the network. The PPSC is sent from the HLR to a serving GPRS support node (SGSN) when the subscriber registers in the packet-switched portion of the network. Also, the PPSC may be sent from the SGSN to a Gateway GPRS Support Node (GGSN) in order to indicate that the subscriber is a prepaid subscriber. When the mobile subscriber begins a packet-switched data session, the SGSN, GGSN, or both periodically send partial call data records (CDRs) to a prepaid center (PPC).

Abstract: A computer based system and method for controlling telephone calls over a computer network. The system comprising an event module for monitoring the telephone network for telephone calls and a web server for delivering one or more pages of call information about each call and displaying one or more call options for disposing each call by a user.

Abstract: A tunneling optimization is described in which packets are forwarded from a home agent to a mobile device by co-locating a foreign agent corresponding to a mobile device at the mobile device. When a mobile device acquires a new foreign agent, the mobile device notifies the home agent as to the corresponding foreign agent address. A packet received at the home agent having the mobile device as a packet header destination address is parsed and the foreign agent address is substituted for the mobile device address, and the packet is forwarded to the foreign agent. The foreign agent, upon receiving the packet, removes the foreign agent address and replaces the mobile device address as the packet header destination address. The packet is then forwarded to the mobile device.

Abstract: The invention discloses a non-server type voice packet communication method, which includes an IP address-inquiring step, an IP address receiving step and a voice packet-transmitting step. According to the method, the IP address-inquiring step firstly transmits an IP address-inquiring signal to a non-server type voice packet communication device using dial tones through a PSTN. Then, the IP address-receiving step receives from PSTN an IP address data transmitted from the non-server type voice packet communication device using dial tones. Finally, the voice packet-transmitting step transmits voice packets to the non-server type voice packet communication device according to the IP address data through digital network.

Abstract: A method and computerized system for directing voice data transmissions by a gateway server of an Internet telephony service provider between an internal computer system of a registered user and an external device connected to the external network, such as Internet, where the internal computer system is protected by a firewall security system that does not allow transmissions of voice data packets to the internal computer system. The gateway server accepts a request from the internal computer system to initiate exchange of voice data with at least one external device, identifies the user and verifies that sender and recipient are registered with the provider and are currently active and able to exchange voice data.

Abstract: A mobile IP communication scheme for supporting a mobile computer moving over different address spaces is disclosed. A packet relay device for relaying packets having an address of the mobile computer device as a destination or source is provided at a border between a private address space and a global address space, where the packet relay device has a packet receiving unit for receiving a packet in a first format using a global address which is transmitted by the mobile computer for a location registration from a visited site managed by a global address system, and checking a content of the packet, and a packet transfer unit for transferring the packet in a second format using a private address, to a correspondent computer in a home network of the mobile computer managed by a private address system, according to the content of the packet.

Abstract: A common services and applications agent (10) handles a number of input sources of voice and data information (11-16). These sources of voice and data information are converted (20) to session initiation protocol. The session initiation protocol for the voice and data information is provided to the communication network (40).

Abstract: An unmanned contract system is constructed by connecting a contract processing apparatus, which is manipulated by a financial institute for processing contracts, with a contract terminal, which is manipulated by each user, via a communication line. The contract processing apparatus obtains required information for a contract from each user's cellular phone, prior to the user's operations at the contract terminal and performs a preliminary examination. The result of the preliminary examination is mapped to an MAC address of the user's cellular phone obtained as identification information and is kept in the contract processing apparatus. The contract terminal fetches the MAC address from the user's cellular phone and transmits the MAC address to the contract processing apparatus. The user is not required to write down any identification information but can utilize the result of the preliminary examination. This arrangement ensures quick conclusion of the contract.

Abstract: A mobile IP communication scheme capable of authenticating an individual user who is operating the mobile computer when the mobile computer is connected to a visited site network and transmits a current location registration message to the home agent is disclosed. A user authentication to judge a properness of a user of the mobile computer is carried out according to a user input based information, and the current location of the mobile computer is registered at the mobile computer management device (home agent) when the user is judged as a proper user. The user authentication can be carried out either at the mobile computer management device according to a user input based information received from the mobile computer, or at the mobile computer according to an information entered by the user at the mobile computer.

Abstract: A method for call signaling and media flow in a network including receiving call signaling information from an originating Voice over Internet Protocol (VoIP) endpoint, relaying the call signaling information to a destination VoIP endpoint, directing the originating VoIP endpoint to use a RTP media proxy and receiving a stream of media to the RTP media proxy from the originating VoIP endpoint.

Abstract: Streaming audio and video (A/V) transmissions have become commonplace due to increasing data rates available over modem computer networks, and should occur at real-time or near real-time so that the user perceives an intelligible audio or video image. Lost or late frames can result in interference or distortion, and may be perceived as a “blip” or “pop” in the output sound or image. Wireless networks are particularly susceptible to such interference. Interference can be reduced by receiving a stream of symbols, arranging the symbols in a series of frames, and interleaving the symbols in one of the frames with symbols in an adjacent one of frames in the series of frames. In this manner, a frame that is dropped or arrives late over the wireless communication link will result in less distortion because some of the symbols will be available from the adjacent frames.

Abstract: Method and system to manage the state maintenance and the traffic maintenance of a Signalling Gateway Process (SGP), and of the corresponding Signalling Gateway (SG) or SGs served by such SGP, in scenarios where traditional Switched Circuit Network (SCN) signalling is transported over data networks, such as IP-networks.

Abstract: An IP telephony client initiates and manages multimedia sessions. The client includes a user interface, an application interface, and a protocol stack. The application interface provides an interface between the protocol stack and the user interface and helper applications. The protocol stack packages messages received from the application interface and parses messages received from other parties or prospective parties. The application interface converts incoming messages to appropriate application programming interfaces (APIs) and sends incoming payloads to the appropriate helper application.

Abstract: The present invention provides a method and apparatus used in an AO/DI networking service that automatically changes thresholds that increase or decrease bandwidth to cause a corresponding change in the rate of data transfer capacity. The AO/DI networking service uses apparatus that comprises a circuit switched network having an end office with a network management center that monitors the circuit switched network. A computer and a packet switched network are connected to the circuit switched network. An ISP connected to the packet switched network and the end office is used for determining the status of telephone circuits in the circuit switched network serving both the computer and the ISP. Once this status is determined, the AO/DI automatically changes thresholds for increasing and decreasing bandwidth thereby effecting a corresponding change in the rate of data transfer capacity for an AO/DI subscriber.

Abstract: This invention relates to methods and apparatus for handling incoming or intra-office calls when a telephone subscriber having a POTS, (Plain Old Telephone Service) telephone instrument and line connecting that customer to a serving switch, is connected to an Internet service provider for providing communications to the Internet. The bandwidth of the customer's line is divided into a lower band for providing communications, and a higher band for transmitting signaling and control information. When an incoming or intra-office call is received while the customer is connected to the Internet, the signal channel is used to transmit information which can be displayed to the called customer providing information about the call. If the called customer wishes to answer the call, the called customer can signal over the signaling channel a request that the incoming or intra-office call be completed.

Abstract: An inband signaling modem communicates digital data over a voice channel of a wireless telecommunications network. An input receives digital data. An encoder converts the digital data into audio tones that synthesize frequency characteristics of human speech. The digital data is also encoded to prevent voice encoding circuitry in the telecommunications network from corrupting the synthesized audio tones representing the digital data. An output then outputs the synthesized audio tones to a voice channel of a digital wireless telecommunications network.

Abstract: The time slot interchange capabilities of modern digital loop carriers are utilized to provide direct connectivity from the calling modem's line to an internet access modem bank through the digital loop carrier, thereby bypassing the local central end office. A call which is to a telephone number of an internet access provider's modem is routed to a bypass initiator. If the bypass initiator detects that the call is from a number which is serviced by a digital loop carrier having a local central end office bypass capability, then the bypass initiator issues a bypass command. The digital loop carrier establishes the bypass connection, but does not break the signaling connection on the initial call which was routed from the digital loop carrier through the local central end office to the bypass initiator. Once the bypass connection has been established, the bypass initiator sends a disconnect signal through the signaling connection of the initial call.

Abstract: The present invention is a Contact Server that enables customers to submit call-back requests to a call center via the Internet, or virtually any other communications technology available. A call-back to the customer can be placed via any communications technology available. In its preferred embodiment, the Contact Server enables a call-back request to be submitted by a customer directly from an HTML page on a Web site, and have that same HTML page be presented to the agent that receives the call-back request. The agent can then place a telephone call to the number provided by the customer who submitted the call-back request, and at the same time, establish a TCP/IP communications session with the customer. This TCP/IP session can proceed between the agent's Web browser and the customer's Web browser, and the visible actions performed by the agent are transferred to the customer and displayed on the customer's browser.

Abstract: A method for facilitating inverse multiplexing over asynchronous transfer mode is disclosed herein. The method includes receiving a stream of sequentially aligned ATM cells via an originating end point logical communication link. A sequence identifier is associated with each one of the ATM for creating sequence identified ATM cells. The sequence identified ATM cells are forwarded to an destination endpoint logical communication link in a distributed manner over a plurality of IM communication links. A first one of said IM communication links has disparate data transmission rates in at least one data transmission direction with respect to a second one of the IM communication links.

Abstract: An inband signaling modem communicates digital data over a voice channel of a wireless telecommunications network. An input receives digital data. An encoder converts the digital data into audio tones that synthesize frequency characteristics of human speech. The digital data is also encoded to prevent voice encoding circuitry in the telecommunications network from corrupting the synthesized audio tones representing the digital data. An output then outputs the synthesized audio tones to a voice channel of a digital wireless telecommunications network.