Abstract: A method, apparatus and communication system for efficiently and economically supporting a multipoint videoconference call is described. The multimedia conference unit determines which communication unit is a dominant communication unit, with the other communication units being thus determined to be subordinate communication units. The multimedia conference unit then commands the subordinate communication units to suppress a video portion of their respective signals, such that the digital signal processing analysis by the multimedia conference unit required to support the multipoint conference is reduced and network bandwidth used is minimized.

Abstract: Apparatus and systems for recording Call ID data and transmitting the Caller ID data to remote telecommunications devices on demand, to fully or partially automate the dialing process for remotely calling back a message sender.

Abstract: The present method for predictive caching operation determines a time-based pattern of a high-access period for a web page, and pre-fetches the web page into a cache before the high access period begins. A table is generated where the table comprises a URL, a time of last access and a time stamp of the pre-fetched web page. When a request for a web page is made, the requested web page's URL and time stamp are checked with the URL and time stamp listed in the table to determine whether any modification has been made. The web page which has been modified is downloaded into the cache.

Abstract: Reconfiguration operations in a networking environment are actively monitored to automatically detect faulty network traffic routing conditions, such as routing loop. The autodetection includes identifying a condition in which one of a number of routers is switched to a reconfiguration mode. In response, a network monitoring state is initiated in which operational parameters of each router are recurringly analyzed to detect an unexpected deviation that evidences the faulty network traffic condition.

Abstract: In a network comprising call handling services for mobile users, services being requested by the mobile user for an active call and wherein each user registers for services with a personal identification number (PIN), a method for updating said personal identification number during an active call, the steps of said method comprising: registering user initially with the network for services with user's personal identification number during an active call; signalling a user preference to update the personal identification number; and updating user's personal identification number during said active call.

Abstract: Methods for accurate transmission of ELIN/callback number from an emergency caller calling from behind a PBX/MLTS include assigning a port equipment number to each device/trunk of the PBX/MLTS and associating ports/devices with ELINs and callback numbers. The apparatus of the invention detects an emergency number, assigns the call priority, and uses the port/device number to determine the ELIN/callback number and properly transmit the ELIN/callback number.

Abstract: A bandwidth adjustment server (BWAS) (109) is provided which monitors system bandwidth usage, sends requests to terminals (102A, 102B and/or 106), to identify their coding capabilities, and directs each of the terminals to adjust their coding algorithms based on system bandwidth usage. If system bandwidth usage is high, the BWAS (109) requires the terminals to employ a less bandwidth intensive coding algorithm; similarly, when system bandwidth usage is low, the BWAS (109) will allow the terminals to employ higher bandwidth use coding algorithms.

Abstract: A Carrier Identification Code (CIC) aware private communications network. International calls are placed with a CIC from a station at an originating server and routed over a private network to a connected public network gateway switch located in another country for a far-end hop-off. The public network gateway switch includes a CIC cross reference table with corresponding local CICs. The public network gateway switch replaces the original CIC with a corresponding local CIC from the cross reference table. Then, the call egresses from the public network gateway switch to a corresponding selected carrier network and connects to the called party on the public communications network.

Abstract: An improved system and method for loading and linking a dynamic link library (DLL) for use of its entities by an application program. During design, implementation, and production implicit linkage is assumed. Upon load and execution by the computer operating system, explicit linking is assumed resulting in unresolved external references. During execution, the application program invokes DLL loading and linking routines to resolve these external references within the application program's memory space. The application program continues execution and seamlessly invokes DLL entities.

Abstract: A system for collaboration summarization playback includes a graphical user interface (950) for displaying summarization categories (952) associated with recording cues and clips of the multimedia conference. The categories may be arranged as a list or as thumbnails and typically includes a length of time for each category; a time during the conference when the associated clip was recorded; and a media type. The categories are clickable and allow the associated clip to be played or displayed as recorded. In addition, in certain embodiments, a voice recognition transcription of audio clips may be provided.

Abstract: A method of determining a trellis from a sequence of n symbols in a Viterbi detector. The method includes the steps of receiving a sequence of n symbols, defining partitioned sets according to a decision tree structure, and determining size of each set partitioning according to tap energy of the channel. The method also includes steps of determining a reduced set of connection paths between the current layer and a destination layer in the trellis by determining a value of a most likely oldest partitioned set in a current layer; and calculating branch metrics only for the current layers in the trellis in which the oldest partitioned set matches the determined value.

Abstract: A telecommunication system includes a source private branch exchange (12) that transmits telephone calls from a source to a destination private branch exchange (26) over a public switched telephone network (18). As an alternative to transmitting the calls over the public switched telephone network, the private branch exchange is coupled to a telephony Internet server 30 that can transmit telephone calls over a global wide area computer network such as the Internet (32). The private branch exchange (12) queries the destination private branch exchange (26) to determine if it similarly coupled to a telephony Internet server. If so, the bandwidth used by the telephony Internet server will allow the transmission of the telephone call, the call is routed over the Internet (32) to the intended recipient.

Abstract: Within a network environment, redundant capabilities for exchanging call-processing signals enhance reliability of telephony support for telephony endpoint devices. A data network, such as a telephony-over-local area network, provides primary support for the telephony endpoint devices, which may be telephony-enabled computers or Internet Protocol telephones. A second network has a first mode in which it is inactive with respect to telephony traffic to the telephony endpoint devices, but has a second mode in which call-processing signals are routed through the second network in response to a determination that the data network is disabled. As a result, telephone features such as call deflection may be continued when the primary support is disabled.

Abstract: A jitter buffer controller (110) allows the depth of the jitter buffer (113) to be adjusted dynamically according to the varying jitter of the current sequence. The jitter buffer controller (110) maintains a cache (109) of previous jitter values. This cache contains exponentially averaged values that represent the long-term behavior of specific destination's jitter characteristics, i.e., a jitter characteristic memory. These values are used to initialize the jitter buffer's depth. The jitter cache prevents the buffer's depth from being initialized with an arbitrary value that disregards the specific destination's jitter characteristics.

Abstract: A priority communication system (12) is provided. The priority communication system (12) comprises a plurality of communication devices (16) and a switching system (18) for communicating with the plurality of communication devices (16) over a limited number of communication channels (20). The switching system (18) operates to assign a received communication signal (24) to an open communication channel (20) based on a priority rating of the received communication signal (24). The switching system (18) may also operate to terminate a communication link having a priority rating lower than the priority rating of the received communication signal (24) in order to open a communication channel (20) and establish a communication link for the received communication signal (24).

Abstract: Systems and methods allow for more efficient wireless networking. In one system, plural subscriber units form a direct network and transmit and receive without base station mediation. In another system, base stations are networked so that one base station can take advantage of the second, networked, base station. In one example, high-capacity lines are connected to one base station which is then networked to a second base station. Through the network, the second base station can utilize the high-capacity lines without being directly connected to them. In another example, the subscriber units can migrate between all base stations in the network. In another example, using networked base stations and unassigned time sequences or codes, calls can be dynamically reassigned between base stations to meet shifting demand.

Abstract: Methods for accurate transmission of ELIN/callback number from an emergency caller calling from behind a PBX/MLTS include assigning a port equipment number to each device/trunk of the PBX/MLTS and associating ports/devices with ELINs and callback numbers. The apparatus of the invention detects an emergency number, assigns the call priority, and uses the port/device number to determine the ELIN/callback number and properly transmit the ELIN/callback number over a private network for far-end hop-off to the public network PSAP.

Abstract: A cordless digital telephone system which allows broadcast over broadcast is provided. Time division multiple access (TDMA) cordless phone systems provide a base unit which is able to provide connections for a plurality of mobile units, such as handsets. With time division, the mobile units are synchronized to different time slots. A broadcast mode is provided that causes the mobile units to be placed in a receive only mode and to synchronize to the same time slot where a broadcast message is sent. In this way, a cordless telephone base unit in a broadcast mode receives a radio or streaming audio signal. A call controller unit included in or coupled to the base station then sends the received radio or streaming audio signal to at least one mobile unit in communication with the base station.

Abstract: A display format for a distributed system and method using a catalog definition language (CDL) based integrated trace analysis (iTAS) application for decoding telecommunication tracer information originating from any telecommunication network element and utilizing any Industry standard or proprietary telecommunication protocol using a browser-based graphical user interface (GUI). The display format of the browser-based graphical user interface (GUI) includes a common display page having three panes in which to display a tree view of trace events, a view of the decoded trace data, and a view of the original trace. The view within all three panes can be synchronized based on the selection of an event from the tree view pane. Additional panes on the common display page are provided for controlling the display, searching and filtering the contents of the three panes, and displaying the progress of decoding.

Abstract: An SIP-H.323 gateway (210) is provided, which functions as a multi-alias H.323 endpoint (204) with one alias representing one SIP agent (206). The SIP-H.323 gateway (210) processes the call signaling conversions and stores and passes media port information to the signaling parties, so that the existence of SIP agents (206) is transparent to the H.323 endpoints (204) and the features are transparently available to the H.323 endpoints.