Call Waiting Patents (Class 379/215.01)
  • Patent number: 6343121
    Abstract: A communications system is designed to present a number of options to a caller who is attempting to reach a call-waiting subscriber already busy on a first call. The options are presented to the caller via an announcement that offers the caller the alternative of either sending immediately a conventional call-waiting alert signal to the subscriber, or leaving a message that is automatically delivered to the subscriber immediately after the subscriber terminates the first call.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: January 29, 2002
    Assignee: AT&T Corp
    Inventor: William J. Infosino
  • Patent number: 6339639
    Abstract: An enhanced telephony call waiting feature and apparatus is provided wherein identifying information related to a third party wishing to converse with a first party already communicating with a second party is provided to the first party during a mute condition in a manner that minimizes the time period of the mute condition. The method is fully compatible with existing services while allowing for new services. The method comprises the steps of the local switching office sending a call waiting tone having predetermined characteristics to the first party and its apparatus responding thereto by generating an acknowledgment signal. The apparatus then initiates a mute condition simultaneous with the ACK signal generation, or in response to detection of a carrier signal, or at some other time after exchange of the call waiting tone and/or the acknowledgment signal has occurred.
    Type: Grant
    Filed: November 4, 1997
    Date of Patent: January 15, 2002
    Inventor: Daniel A. Henderson
  • Patent number: 6333974
    Abstract: Reliable detection of a call-waiting tone is provided by employing a correlation based technique. A modem or other device employing such a technique need not rely on carrier drop detection and is generally insensitive to other energy or noise on the line.
    Type: Grant
    Filed: May 26, 1998
    Date of Patent: December 25, 2001
    Assignee: AltoCom, Inc.
    Inventors: Haixiang Liang, Zarko Draganic
  • Patent number: 6330318
    Abstract: A method of interrupting a call between two parties in a switched telecommunications. A monitoring switch monitors the call for a party initiated interrupt signal. Whenever the monitoring switch receives an interrupt signal initiated by its associated party, the monitoring switch initiates a call between the party initiating the interrupt signal and a serving platform, and parks the other party at a port of the monitoring switch. The monitoring switch then monitors the status of the call between the party initiating the interrupt signal and the serving platform, and the status of the parked call so that the parties may be reconnected at the conclusion of the call between the requesting party and the serving platform or informed if one of the parties disconnects before they are reconnected.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: December 11, 2001
    Assignee: MCI WorldCom, Inc.
    Inventors: Donald A. Turner, Timothy A. Morgan, Franklin O. Shaffer, Ranga R. Dendi
  • Patent number: 6327356
    Abstract: A method and an apparatus for handling incoming calls when call waiting is active. If the called party is not on a call when an incoming call occurs and the called party does not answer the incoming call then a message is played to the calling party that the called party did not answer, and the called party is given the opportunity to record a message for the called party. If the called party is on a call when an incoming call occurs and, after the call waiting signal is played to the called party, the called party does not answer the incoming call then a message is played to the calling party that the called party is busy, and the called party is given the opportunity to record a message for the called party. If the called party is engaged in a first call and a second call when an incoming call occurs then a message is played to the calling party that the called party is busy, and the called party is given the opportunity to record a message for the called party.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: December 4, 2001
    Assignee: BellSouth Intellectual Property Group, Inc.
    Inventor: Dale W. Malik
  • Patent number: 6317488
    Abstract: An Internet Call Waiting Device (ICW) detects a Call Waiting signal even when a modem is currently using the phone line. Upon sensing the Call Waiting signal, the internet Call Waiting device alerts the user using one or more flashing lights and/or generating audible signals that the user can hear. If the user has a Call Waiting-Caller ID service the caller's name and number are also displayed if it is available from the phone company. After being notified, the user can choose to ignore the call or take the call by picking up a telephone. If the user picks up the telephone, the ICW signals the central office to put the first modem connection on hold. A connection is then made with the second call. When the second call is completed and the user hangs up the telephone for the second call, the ICW signals the central office to reconnect the first modem call. The ICW includes a signal detector for detecting a Call Waiting or Call Waiting-Caller ID signal on the phone line.
    Type: Grant
    Filed: November 9, 1999
    Date of Patent: November 13, 2001
    Assignee: Notify Corporation
    Inventors: Paul F. DePond, Gaylan Larson
  • Patent number: 6314173
    Abstract: A telephone apparatus is disclosed wherein the use of the call-waiting service is provided while a dedicated call-waiting operating portion is not required. When there is a call from a third party's telephone apparatus to a first party while the first party is conducting a telephone conversation with a second party, a call-waiting unit switches the first party's line connection from the second party's telephone apparatus to the third party's telephone apparatus. A call-waiting operating portion or button is used to instruct the call-waiting unit to switch the line connection. The call-waiting operating portion is structured so that the operating portion can also be used as an operating portion that has a function other than the call-waiting function. When the call-waiting button is depressed, a CPU determines whether the line is connected and then whether the telephone apparatus is in a dialing or communication mode.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: November 6, 2001
    Assignee: Brother, Kogyo Kabushiki Kaisha
    Inventor: Junji Hatamura
  • Patent number: 6307930
    Abstract: The present invention is directed to methods for allowing phone lines to be used in a bonding scheme while retaining the ability to make or receive calls on those lines without terminating the entire data transmission. When a incoming call to one of the lines in use is detected, the call is rerouted to a specially configured server. Via the Internet, this server notifies the computer using the bonding scheme and coordinates the rerouting of the data transmission to the one or more other phone lines being bonded so that the requested line can be released and made available to connect the call. When the call is completed, the line can be returned to use as part of the bonded data transmission. When an outgoing call needs to be made, the computer using the bonding scheme is notified via an electronic signal. The computer then coordinates the rerouting of the data transmission to the one or more other lines being used in the bonding scheme and releases the line for the outgoing call.
    Type: Grant
    Filed: October 19, 1998
    Date of Patent: October 23, 2001
    Assignee: AT&T Corp.
    Inventor: Daniel Jitzchak Mayer
  • Patent number: 6304644
    Abstract: Consumer process equipment (CPE) for cost effective caller identification (CID) and call-waiting (CW) for a multi-line telephone includes a single CIDCW detection circuit and a single switch for coupling the single CIDCW detection circuit between a plurality of telephone lines. The CPE is able to process CIDCW information over a plurality of telephone lines by dynamically switching the single switch from one telephone line to another, depending upon the current state of the CPE.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: October 16, 2001
    Assignee: Casio Communications, Inc.
    Inventor: Mark J. Karnowski
  • Publication number: 20010024495
    Abstract: An inexpensive alternative for call queuing is provided by queuing calls at an intelligent peripheral within an AIN telecommunication system. A call to the subscriber line is detected at a local switch supporting the subscriber line. If the subscriber line is busy, the call to the subscriber is queued in the intelligent peripheral.
    Type: Application
    Filed: June 4, 2001
    Publication date: September 27, 2001
    Applicant: Qwest Communications International Inc.
    Inventors: John M. Verbil, Martin R. Marks, R. Eric Pflum, William C. Catellier, Roberto Yslas
  • Publication number: 20010012349
    Abstract: Consumer process equipment (CPE) for cost effective caller identification (CID) and call-waiting (CW) for a multi-line telephone includes a single CIDCW detection circuit and a single switch for coupling the single CIDCW detection circuit between a plurality of telephone lines. The CPE is able to process CIDCW information over a plurality of telephone lines by dynamically switching the single switch from one telephone line to another, depending upon the current state of the CPE.
    Type: Application
    Filed: May 6, 1998
    Publication date: August 9, 2001
    Applicant: CASIO COMMUNICATIONS, INC.
    Inventor: MARK J. KARNOWSKI