Search Patents
  • Patent number: 8615004
    Abstract: A method and apparatus for enabling a subscriber of VoIP services to register a cellular phone as an on-net device with a defined interface to the VoIP network are disclosed. The present method enables calls placed between originating and terminating subscribers using registered cellular phones to be rerouted between the cellular networks and the VoIP network for call establishment.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: December 24, 2013
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20100085897
    Abstract: A method and apparatus for ensuring that every path in an IP network that interconnects a pair of VoIP network elements comprises diverse network routes and is engineered with adequate bandwidth to support VoIP phone calls are disclosed. In the event that a single point of failure or inadequate bandwidth is detected between a pair of VoIP network elements, an alarm is issued and network engineers are notified to reconfigure the routes between the VoIP network element pair.
    Type: Application
    Filed: December 8, 2009
    Publication date: April 8, 2010
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8737381
    Abstract: A method and apparatus for enabling users behind NAT devices to receive unsolicited VoIP calls by allowing the VoIP network to dynamically open a temporary tunnel between the users' VoIP endpoint and the VoIP network for the subscriber to receive call set up messages and media streams from other callers are disclosed. An unsolicited call is a call that can be originated from any calling party endpoint. Once the call is finished, the temporary tunnel will be closed.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: May 27, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20110188495
    Abstract: The invention provides a method and apparatus for enabling DTMF signal processing in the core VoIP network. More specifically, the present invention enables a VoIP network to recognize and respond to special DTMF signals entered by a user and initiate the appropriate service logic response to satisfy the user's service request.
    Type: Application
    Filed: April 11, 2011
    Publication date: August 4, 2011
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7881289
    Abstract: The present invention enables a capability for automatically porting the telephone number of the original VoIP endpoint device to the user's new VoIP endpoint device by re-associating the original telephone number with the MAC address of the new IP endpoint device.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: February 1, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20100246572
    Abstract: A method and apparatus for providing subscribers of a VoIP service provider to take advantage of wholesale arrangements made by the VoIP service provider with one or more international partner carrier network providers to one or more international countries are disclosed. Specifically, the present method enables a VoIP service provider to display a web page to their subscribers, for each destination country, with one or more international partner network providers and their corresponding calling rates and/or call completion success rates to each particular destination country.
    Type: Application
    Filed: June 4, 2010
    Publication date: September 30, 2010
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7924814
    Abstract: The invention provides a method and apparatus for enabling DTMF signal processing in the core VoIP network. More specifically, the present invention enables a VoIP network to recognize and respond to special DTMF signals entered by a user and initiate the appropriate service logic response to satisfy the user's service request.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: April 12, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7995739
    Abstract: The present invention enables retailers who use toll free services provided by a VoIP network service provider to obtain peering arrangements with international and domestic VoIP carriers to originate, terminate, and bridge multiple call legs among global locations across peering partner carriers.
    Type: Grant
    Filed: December 27, 2004
    Date of Patent: August 9, 2011
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20090323551
    Abstract: The present invention allows monitoring and the prevention of call storms in a communications network, e.g., a VoIP network. More specifically, the present invention enables a VoIP network to monitor the calling pattern, e.g., the number of calls within a period of time that occurs between the same endpoints. If the number of calls exceed a certain threshold, then these calls with the same endpoints will be terminated and an alarm notification will be sent, e.g., to a network operator.
    Type: Application
    Filed: September 3, 2009
    Publication date: December 31, 2009
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7852832
    Abstract: A method and apparatus for enabling a network provider to provide a security server in a packet network, e.g., a VoIP network that allows a third party partner to interface an application server hosted in the third party's network with the VoIP network infrastructure are disclosed. The security server provides the appropriate level of network address translations, firewall support, content filtering, and validation for the third party application server.
    Type: Grant
    Filed: November 30, 2005
    Date of Patent: December 14, 2010
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8675638
    Abstract: The invention provides a method and apparatus for enabling DTMF signal processing in the core VoIP network. More specifically, the present invention enables a VoIP network to recognize and respond to special DTMF signals entered by a user and initiate the appropriate service logic response to satisfy the user's service request.
    Type: Grant
    Filed: April 11, 2011
    Date of Patent: March 18, 2014
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20100098065
    Abstract: A method and apparatus for enabling calling parties to request the VoIP network to provide a special ring tone to be signaled as the occurrence of an urgent call to called parties are disclosed. Alternatively, a high frequency intercept tone or call waiting tone is also provided when the called parties are already engaged in conversation when an urgent call is incoming.
    Type: Application
    Filed: December 26, 2009
    Publication date: April 22, 2010
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20100098067
    Abstract: A method and apparatus for enabling calls destined for a terminating point on a packet network, e.g., a VoIP network, that is experiencing a service disruption to be forwarded by the network to another endpoint is disclosed. The method enables subscribers to register an alternative number, such as a cell phone number, a relative's phone number, or a work number, that the network can use to forward calls in the event of a service disruption. In one embodiment, the provider can even use an alternative transport network, such as the PSTN, to forward these calls until the VoIP network service is restored.
    Type: Application
    Filed: December 26, 2009
    Publication date: April 22, 2010
    Inventors: MARIAN CROAK, HOSSEIN ESLAMBOLCHI
  • Publication number: 20100098064
    Abstract: A method and apparatus for dynamically enabling the activation and deactivation of comfort noise over a VoIP media path or channel are disclosed. The present method detects all sound levels in the media path and only activates the comfort noise in the absence of sound and when the background noise level or the telephone line noise level is low rather than only in the absence of speech.
    Type: Application
    Filed: December 26, 2009
    Publication date: April 22, 2010
    Inventors: MARIAN CROAK, Hossein Eslambolchi
  • Publication number: 20090232131
    Abstract: The present invention enables the remote activation of a device by a packet-switched service, e.g., VoIP network service for the purposes of receiving calls identified as urgent from a pre-identified calling party when the device is disabled. The present invention enables registered users to select the calling parties they wish to receive emergency calls from.
    Type: Application
    Filed: April 7, 2009
    Publication date: September 17, 2009
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7224773
    Abstract: The present invention enables the remote activation of a device by a packet-switched service, e.g., VoIP network service for the purposes of receiving calls identified as urgent from a pre-identified calling party when the device is disabled. The present invention enables registered users to select the calling parties they wish to receive emergency calls from.
    Type: Grant
    Filed: December 23, 2004
    Date of Patent: May 29, 2007
    Assignee: AT&T Corp.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Publication number: 20090323561
    Abstract: A method and apparatus for providing access to teleconference services using voice recognition technology to receive information on packet networks such as Voice over Internet Protocol (VoIP) and Service over Internet Protocol (SoIP) networks are disclosed. In one embodiment, the service provider enables a caller to enter access information for accessing a conference service using at least one natural language response.
    Type: Application
    Filed: September 3, 2009
    Publication date: December 31, 2009
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 7664237
    Abstract: A method and apparatus for enabling calling parties to request the VoIP network to provide a special ring tone to be signaled as the occurrence of an urgent call to called parties are disclosed. Alternatively, a high frequency intercept tone or call waiting tone is also provided when the called parties are already engaged in conversation when an urgent call is incoming.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: February 16, 2010
    Assignee: AT&T Corp.
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 8576832
    Abstract: A method and apparatus for enabling a network service provider, e.g., a VoIP network provider, to create configuration files containing network based parameters that support global telephony capabilities (e.g., in country services) such as in country ring tones, dialing patterns, network announcements, and signaling tones that can be offered to users who want in country telephony capabilities independent of their location is disclosed. These global telephony capability configurations can be downloaded to intelligent IP phones or based in the VoIP network for access by subscribers' telephony devices.
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: November 5, 2013
    Assignee: AT&T Intellectual Property II
    Inventors: Marian Croak, Hossein Eslambolchi
  • Patent number: 9137361
    Abstract: A method and apparatus for enabling a network service provider, e.g., a VoIP network provider, to create configuration files containing network based parameters that support global telephony capabilities (e.g., in country services) such as in country ring tones, dialing patterns, network announcements, and signaling tones that can be offered to users who want in country telephony capabilities independent of their location is disclosed. These global telephony capability configurations can be downloaded to intelligent IP phones or based in the VoIP network for access by subscribers' telephony devices.
    Type: Grant
    Filed: November 4, 2013
    Date of Patent: September 15, 2015
    Assignee: AT&T Intellectual Property II, L.P.
    Inventors: Marian Croak, Hossein Eslambolchi