Search Patents
  • Patent number: 8670323
    Abstract: A method and apparatus for enabling a tool to collect alerting information of network disruptions across access networks external to a packet network, e.g., a VoIP network, is disclosed. By monitoring the status of external access networks, service disruptions in the VoIP network that can be potentially caused by such access networks can be anticipated, prevented, diagnosed and/or resolved rapidly.
    Type: Grant
    Filed: April 19, 2005
    Date of Patent: March 11, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8411668
    Abstract: A method and apparatus for enabling providers of PSTN toll free services to stagger simultaneous transmission of call setup signaling messages into an IP based teleconference bridge, supported by a VoIP network, by suspending a subset of calls and placing them on hold while placing other calls to be connected to the conference bridge are disclosed. The PSTN network can stagger calls by limiting the number of call setup signaling messages to be sent to the VoIP network within a predefined period of time interval and spread all the calls over multiple of such predefined periods. Prerecorded announcements or music can be played while the calls that have been placed on hold are in queue.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: April 2, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8600009
    Abstract: A method and apparatus for enabling broadband access providers to use the subscriber service address associated with the Media Access Control (MAC) address and the Internet Protocol (IP) address of the subscriber's Digital Subscriber Loop (DSL) modem or cable modem as the service address that is sent to the appropriate Public Safety Answering Point (PSAP) are disclosed. The present method enables a mapping between a subscriber's VoIP telephone number, broadband access modem MAC and IP addresses, and the subscriber's registered broadband service address to determine the correct PSAP to route an E911 call to.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: December 3, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8570906
    Abstract: A method and apparatus for enabling a network provider to instantly assign a virtual number to a subscriber to use until their primary number is successfully ported to the VoIP network is disclosed. For example, a virtual number can be a phone number for callers outside a subscriber's local calling area to call the subscriber for the price of a local call if the subscriber chooses a virtual phone number in their local calling area. After the porting of the primary number is successful, the user can be reached by either having callers directly dial the primary number or the previously assigned virtual number. The subscriber can continue to use both phone numbers or choose to disconnect the virtual number and only use the successfully ported primary number.
    Type: Grant
    Filed: July 26, 2005
    Date of Patent: October 29, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi