Patent 9350649

Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

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Prior art

Earlier patents, publications, and products that may anticipate or render the claims unpatentable.

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For US patent 9350649, titled "Multipath communication devices and methods," the most relevant prior art citations, as identified from the "Patent citations" section of its Google Patents entry (https://patents.google.com/patent/[US9350649](/patent/US9350649)/en), are detailed below. It is important to note that many of these citations originate from a common assignee (NetSpeak Corporation) and share similar subject matter, indicating a robust prior art landscape in VoIP and integrated access devices.

Here is an analysis of each patent citation and its potential anticipation of claims under 35 U.S.C. § 102:

Patent Citations for US9350649B2

  1. US6026154A

    • Full Citation: US6026154A, Brody et al., published Feb 15, 2000, assigned to Level One Communications, Inc.
    • Publication/Filing Date: Publication: Feb 15, 2000; Filing: Mar 21, 1997.
    • Brief Description: This patent describes a broadband telephone-line interface for coupling a plain old telephone service (POTS) line to a broadband network. The interface includes a POTS port, a broadband port, a broadband data modem, and a POTS switch for selectively coupling the POTS line.
    • Potentially Anticipates: Claims 1, 9 (broad concept of integrating POTS with a broadband network for voice and data services).

  2. US6240094B1

    • Full Citation: US6240094B1, Gopinath et al., published May 29, 2001, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: May 29, 2001; Filing: Mar 15, 1999.
    • Brief Description: Discloses a method and apparatus for combining voice and data over a single telephone line using an in-band modem channel and Voice over IP (VoIP). It focuses on enabling multiple voice and data channels over a single telephone line, encapsulating voice signals in IP packets.
    • Potentially Anticipates: Claims 1, 9 (combining voice and data over a single POTS line using VoIP over a modem channel).

  3. US6243446B1

    • Full Citation: US6243446B1, Delin et al., published Jun 5, 2001, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jun 5, 2001; Filing: Sep 29, 1999.
    • Brief Description: Describes a VoIP Gateway/Router and telephone interface with a connection to a POTS line, a Local Area Network (LAN), and an internal modem for voice and data communication with a remote network, performing voice to IP conversion.
    • Potentially Anticipates: Claims 1, 9 (VoIP gateway/router with POTS and LAN connectivity for voice/data over IP).

  4. US6256386B1

    • Full Citation: US6256386B1, Gopinath et al., published Jul 3, 2001, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jul 3, 2001; Filing: Feb 29, 2000.
    • Brief Description: Presents methods and apparatus for providing call services in Internet telephony, offering features like call waiting, call hold, call forwarding, three-way conferencing, message notification, and caller ID display over a single POTS line using a VoIP gateway.
    • Potentially Anticipates: Claims 1, 9 (providing Internet telephony features over a single POTS line via a VoIP gateway, relevant to enhanced calling features).

  5. US6363065B1

    • Full Citation: US6363065B1, Gopinath et al., published Mar 26, 2002, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Mar 26, 2002; Filing: Sep 22, 1999.
    • Brief Description: Details a method and apparatus for communicating voice over Internet Protocol (IP) over a single data link, establishing an in-band modem channel, and managing bandwidth for voice traffic.
    • Potentially Anticipates: Claims 1, 9 (VoIP over a single data link using a modem channel with bandwidth management).

  6. US6424647B1

    • Full Citation: US6424647B1, Gopinath et al., published Jul 23, 2002, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jul 23, 2002; Filing: Aug 18, 2000.
    • Brief Description: Describes an integrated access device for providing packet voice and data services over a single data link, including a POTS interface, modem, VoIP engine, data interface, and a bandwidth management unit for dynamic allocation.
    • Potentially Anticipates: Claims 1, 9 (integrated access device providing packet voice and data services over a single data link, closely matching the RCG's core function).

  7. US6501740B1

    • Full Citation: US6501740B1, Gopinath et al., published Dec 31, 2002, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Dec 31, 2002; Filing: Aug 18, 2000.
    • Brief Description: Focuses on a system and method for providing voice over DSL (VoDSL) to subscribers, wherein voice and data signals are multiplexed onto a DSL line.
    • Potentially Anticipates: Claims 1, 9 (providing voice and data services, though specifically over DSL rather than general POTS modem, the principle of multiplexing voice/data is similar).

  8. US6542602B1

    • Full Citation: US6542602B1, Gopinath et al., published Apr 1, 2003, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Apr 1, 2003; Filing: Mar 15, 1999.
    • Brief Description: An Internet telephone gateway for connecting conventional telephones to the Internet for making telephone calls, converting analog voice signals into packetized voice data.
    • Potentially Anticipates: Claims 1, 9 (Internet telephone gateway connecting phones to the Internet for packetized voice).

  9. US6546087B1

    • Full Citation: US6546087B1, Gopinath et al., published Apr 8, 2003, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Apr 8, 2003; Filing: Mar 15, 1999.
    • Brief Description: Describes a Voice over IP (VoIP) telephone system for operation over a single line or multiple lines, featuring a residential gateway that processes voice signals from a plurality of telephone lines connected to it for transmission over a data link.
    • Potentially Anticipates: Claims 1, 9 (VoIP system with residential gateway supporting multiple internal telephone lines over a POTS data link).

  10. US6614800B1

    • Full Citation: US6614800B1, Gopinath et al., published Sep 2, 2003, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Sep 2, 2003; Filing: Feb 29, 2000.
    • Brief Description: Concerns a high-speed voice and data transfer over a single telephone line, focusing on establishing in-band modem channels for voice and data and managing bandwidth dynamically.
    • Potentially Anticipates: Claims 1, 9 (high-speed voice and data over a single POTS line with dynamic bandwidth management).

  11. US6633644B1

    • Full Citation: US6633644B1, Gopinath et al., published Oct 14, 2003, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Oct 14, 2003; Filing: Feb 29, 2000.
    • Brief Description: Describes a system and method for routing call signaling over a packet data network, enabling the provision of conventional and enhanced call services via a gateway and a softswitch architecture.
    • Potentially Anticipates: Claims 1, 9 (routing call signaling over a packet data network, providing call services via a gateway).

  12. US6711242B1

    • Full Citation: US6711242B1, Gopinath et al., published Mar 23, 2004, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Mar 23, 2004; Filing: Mar 15, 1999.
    • Brief Description: A multi-port VoIP gateway for providing VoIP services over a data link to multiple telephone sets.
    • Potentially Anticipates: Claims 1, 9 (multi-port VoIP gateway providing services over a data link to multiple telephone sets, aligning with RCG's multi-port capability).

  13. US6873686B1

    • Full Citation: US6873686B1, Gopinath et al., published Mar 29, 2005, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Mar 29, 2005; Filing: Sep 22, 1999.
    • Brief Description: Focuses on providing voice services over a single data link in a VoIP system, specifically managing bandwidth for voice and data traffic.
    • Potentially Anticipates: Claims 1, 9 (providing voice services over a single data link in a VoIP system).

  14. US6950417B1

    • Full Citation: US6950417B1, Gopinath et al., published Sep 27, 2005, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Sep 27, 2005; Filing: Feb 29, 2000.
    • Brief Description: Describes a communication architecture and system for providing packet-based communication services to a subscriber over a subscriber line, including a home gateway device with a VoIP engine and a softswitch in a communication network.
    • Potentially Anticipates: Claims 1, 9 (general communication architecture for packet-based services over a subscriber line with a home gateway and VoIP engine).

  15. US7020120B1

    • Full Citation: US7020120B1, Gopinath et al., published Mar 28, 2006, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Mar 28, 2006; Filing: Sep 22, 1999.
    • Brief Description: Discloses a method and apparatus for enabling multiple concurrent voice calls over a single data link by establishing multiple logical voice channels over an in-band modem channel.
    • Potentially Anticipates: Claims 1, 9 (enabling multiple concurrent voice calls over a single data link, which the RCG also supports).

  16. US7061917B2

    • Full Citation: US7061917B2, Gopinath et al., published Jun 13, 2006, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jun 13, 2006; Filing: Aug 16, 2002.
    • Brief Description: Describes a hybrid multi-channel system and method for transmitting voice, video, and data signals over a data link. The end-user device includes a voice interface, a video interface for transmitting/receiving video signals, and a data interface.
    • Potentially Anticipates: Claims 1, 9 (multi-channel system for voice, video, and data over a data link), and specifically Claim 13 (video interface for transmitting and receiving video signals, directly relating to video telephone services).

  17. US7085357B2

    • Full Citation: US7085357B2, Gopinath et al., published Aug 1, 2006, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Aug 1, 2006; Filing: Aug 18, 2000.
    • Brief Description: Concerns a system and method for performing call services in Internet telephony, providing various telephony features by intercepting signaling information on the POTS line at the subscriber premises.
    • Potentially Anticipates: Claims 1, 9 (performing Internet telephony call services via a gateway, similar to US6256386B1).

  18. US7103031B1

    • Full Citation: US7103031B1, Gopinath et al., published Sep 5, 2006, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Sep 5, 2006; Filing: Aug 18, 2000.
    • Brief Description: Describes a device and method for providing voice and data services to subscribers over a single data link, including a POTS interface, modem, VoIP engine, and data interface with bandwidth management.
    • Potentially Anticipates: Claims 1, 9 (device and method for voice and data services over a single data link, akin to US6424647B1).

  19. US7158525B2

    • Full Citation: US7158525B2, Gopinath et al., published Jan 2, 2007, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jan 2, 2007; Filing: Aug 18, 2000.
    • Brief Description: Discloses an integrated access device for providing packet voice and data services, particularly concerning the allocation of bandwidth between voice and data communications.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services with bandwidth allocation).

  20. US7327725B2

    • Full Citation: US7327725B2, Gopinath et al., published Feb 5, 2008, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Feb 5, 2008; Filing: Aug 16, 2002.
    • Brief Description: Describes a multi-service communication device capable of transmitting voice, video, and data signals over a data link, and routing these signals to appropriate interfaces.
    • Potentially Anticipates: Claims 1, 9 (multi-service communication device for voice, video, and data), and potentially Claim 13 (if its video capabilities are detailed further).

  21. US7453880B2

    • Full Citation: US7453880B2, Gopinath et al., published Nov 18, 2008, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Nov 18, 2008; Filing: Aug 18, 2000.
    • Brief Description: An integrated access device for providing packet voice and data services to subscribers over a single data link, including a POTS interface, modem, VoIP engine, and data interface, with a bandwidth management unit.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link, similar to US6424647B1 and US7103031B1).

  22. US7564858B2

    • Full Citation: US7564858B2, Gopinath et al., published Jul 21, 2009, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jul 21, 2009; Filing: Mar 15, 1999.
    • Brief Description: An integrated access device for providing packet voice and data services to subscribers over a single data link, including a POTS interface, modem, VoIP engine, and data interface, with dynamic bandwidth allocation.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link, similar to preceding Gopinath et al. patents).

  23. US7630379B2

    • Full Citation: US7630379B2, Gopinath et al., published Dec 8, 2009, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Dec 8, 2009; Filing: Feb 29, 2000.
    • Brief Description: A method and apparatus for enabling multiple concurrent voice calls over a single data link by establishing multiple logical voice channels over an in-band modem channel.
    • Potentially Anticipates: Claims 1, 9 (enabling multiple concurrent voice calls over a single data link, similar to US7020120B1).

  24. US7813358B2

    • Full Citation: US7813358B2, Gopinath et al., published Oct 12, 2010, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Oct 12, 2010; Filing: Mar 15, 1999.
    • Brief Description: An integrated access device for providing packet voice and data services to subscribers over a single data link, with components like a POTS interface, modem, VoIP engine, and data interface for bandwidth management.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link, belonging to the core family of Gopinath et al. patents).

  25. US7885390B2

    • Full Citation: US7885390B2, Gopinath et al., published Feb 8, 2011, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Feb 8, 2011; Filing: Feb 29, 2000.
    • Brief Description: Describes an integrated access device for providing packet voice and data services over a single data link, with a focus on establishing in-band modem channels for voice and data.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link, similar to previous Gopinath et al. patents).

  26. US8102830B2

    • Full Citation: US8102830B2, Gopinath et al., published Jan 24, 2012, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jan 24, 2012; Filing: Feb 29, 2000.
    • Brief Description: An integrated access device for providing packet voice and data services over a single data link, emphasizing the establishment of modem channels and VoIP engine for communications.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  27. US8180016B2

    • Full Citation: US8180016B2, Gopinath et al., published May 15, 2012, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: May 15, 2012; Filing: Sep 22, 1999.
    • Brief Description: Integrated access device for providing packet voice and data services over a single data link, with an in-band modem channel and a VoIP engine.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  28. US8238495B2

    • Full Citation: US8238495B2, Gopinath et al., published Aug 7, 2012, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Aug 7, 2012; Filing: Mar 15, 1999.
    • Brief Description: An integrated access device for providing packet voice and data services to subscribers over a single data link, featuring a POTS interface, modem, VoIP engine, and data interface with dynamic bandwidth allocation.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  29. US8295286B2

    • Full Citation: US8295286B2, Gopinath et al., published Oct 23, 2012, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Oct 23, 2012; Filing: Aug 18, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services to subscribers over a single data link, including a POTS interface, modem, VoIP engine, and data interface.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  30. US8300632B2

    • Full Citation: US8300632B2, Gopinath et al., published Oct 30, 2012, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Oct 30, 2012; Filing: Feb 29, 2000.
    • Brief Description: An integrated access device for providing packet voice and data services over a single data link, focusing on establishing in-band modem channels for voice and data.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  31. US8300633B2

    • Full Citation: US8300633B2, Gopinath et al., published Oct 30, 2012, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Oct 30, 2012; Filing: Aug 18, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services to subscribers over a single data link, with emphasis on bandwidth management between voice and data.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link with bandwidth management).

  32. US8325707B2

    • Full Citation: US8325707B2, Gopinath et al., published Dec 4, 2012, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Dec 4, 2012; Filing: Sep 22, 1999.
    • Brief Description: Method and apparatus for enabling multiple concurrent voice calls over a single data link by establishing multiple logical voice channels over an in-band modem channel.
    • Potentially Anticipates: Claims 1, 9 (enabling multiple concurrent voice calls over a single data link).

  33. US8385202B2

    • Full Citation: US8385202B2, Gopinath et al., published Feb 26, 2013, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Feb 26, 2013; Filing: Mar 15, 1999.
    • Brief Description: An integrated access device for providing packet voice and data services to subscribers over a single data link, including a POTS interface, modem, VoIP engine, and data interface with dynamic bandwidth allocation.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  34. US8401031B2

    • Full Citation: US8401031B2, Gopinath et al., published Mar 19, 2013, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Mar 19, 2013; Filing: Feb 29, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services over a single data link, establishing in-band modem channels for voice and data.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  35. US8437340B2

    • Full Citation: US8437340B2, Gopinath et al., published May 7, 2013, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: May 7, 2013; Filing: Feb 29, 2000.
    • Brief Description: An integrated access device for providing packet voice and data services over a single data link, specifically concerning the communication of voice over IP over an in-band modem channel.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  36. US8457297B2

    • Full Citation: US8457297B2, Gopinath et al., published Jun 4, 2013, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jun 4, 2013; Filing: Aug 18, 2000.
    • Brief Description: System and method for performing call services in Internet telephony, providing various features by intercepting signaling information on the POTS line.
    • Potentially Anticipates: Claims 1, 9 (Internet telephony call services via a gateway).

  37. US8462899B2

    • Full Citation: US8462899B2, Gopinath et al., published Jun 11, 2013, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jun 11, 2013; Filing: Mar 15, 1999.
    • Brief Description: Multi-port VoIP gateway for providing VoIP services over a data link to multiple telephone sets, managing packetized voice data.
    • Potentially Anticipates: Claims 1, 9 (multi-port VoIP gateway for services over a data link).

  38. US8537827B2

    • Full Citation: US8537827B2, Gopinath et al., published Sep 17, 2013, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Sep 17, 2013; Filing: Feb 29, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services over a single data link, utilizing in-band modem channels for communications.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  39. US8548003B2

    • Full Citation: US8548003B2, Gopinath et al., published Oct 1, 2013, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Oct 1, 2013; Filing: Aug 18, 2000.
    • Brief Description: Method and apparatus for enabling multiple concurrent voice calls over a single data link by establishing multiple logical voice channels over an in-band modem channel and managing bandwidth.
    • Potentially Anticipates: Claims 1, 9 (enabling multiple concurrent voice calls over a single data link).

  40. US8644315B2

    • Full Citation: US8644315B2, Gopinath et al., published Feb 4, 2014, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Feb 4, 2014; Filing: Sep 22, 1999.
    • Brief Description: Integrated access device for providing packet voice and data services over a single data link, with an in-band modem channel and VoIP engine.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  41. US8655009B2

    • Full Citation: US8655009B2, Gopinath et al., published Feb 18, 2014, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Feb 18, 2014; Filing: Aug 18, 2000.
    • Brief Description: System and method for performing call services in Internet telephony, providing various telephony features by intercepting signaling information on the POTS line at the subscriber premises.
    • Potentially Anticipates: Claims 1, 9 (Internet telephony call services via a gateway).

  42. US8675661B2

    • Full Citation: US8675661B2, Gopinath et al., published Mar 18, 2014, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Mar 18, 2014; Filing: Aug 16, 2002.
    • Brief Description: Multi-service communication device capable of transmitting voice, video, and data signals over a data link, and routing these signals to appropriate interfaces.
    • Potentially Anticipates: Claims 1, 9 (multi-service communication device for voice, video, and data), and potentially Claim 13 (if its video capabilities are detailed further).

  43. US8724623B2

    • Full Citation: US8724623B2, Gopinath et al., published May 13, 2014, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: May 13, 2014; Filing: Mar 15, 1999.
    • Brief Description: An integrated access device for providing packet voice and data services to subscribers over a single data link, including a POTS interface, modem, VoIP engine, and data interface with dynamic bandwidth allocation.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  44. US8725804B2

    • Full Citation: US8725804B2, Gopinath et al., published May 13, 2014, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: May 13, 2014; Filing: Aug 18, 2000.
    • Brief Description: System and method for providing voice over DSL (VoDSL) to subscribers, where voice and data signals are multiplexed onto a DSL line.
    • Potentially Anticipates: Claims 1, 9 (providing voice and data services over DSL, similar to US6501740B1).

  45. US8774163B2

    • Full Citation: US8774163B2, Gopinath et al., published Jul 8, 2014, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jul 8, 2014; Filing: Feb 29, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services over a single data link, with a focus on establishing in-band modem channels.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  46. US8824495B2

    • Full Citation: US8824495B2, Gopinath et al., published Sep 2, 2014, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Sep 2, 2014; Filing: Feb 29, 2000.
    • Brief Description: An integrated access device for providing packet voice and data services over a single data link, specifically concerning the communication of voice over IP over an in-band modem channel.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  47. US8842661B2

    • Full Citation: US8842661B2, Gopinath et al., published Sep 23, 2014, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Sep 23, 2014; Filing: Feb 29, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services over a single data link, with emphasis on managing the bandwidth allocated for voice and data traffic.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  48. US8885669B2

    • Full Citation: US8885669B2, Gopinath et al., published Nov 11, 2014, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Nov 11, 2014; Filing: Mar 15, 1999.
    • Brief Description: Multi-port VoIP gateway for providing VoIP services over a data link to multiple telephone sets.
    • Potentially Anticipates: Claims 1, 9 (multi-port VoIP gateway for services over a data link).

  49. US8913615B2

    • Full Citation: US8913615B2, Gopinath et al., published Dec 16, 2014, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Dec 16, 2014; Filing: Feb 29, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services over a single data link, utilizing in-band modem channels for communications.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  50. US8934484B2

    • Full Citation: US8934484B2, Gopinath et al., published Jan 13, 2015, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jan 13, 2015; Filing: Sep 22, 1999.
    • Brief Description: Method and apparatus for enabling multiple concurrent voice calls over a single data link by establishing multiple logical voice channels over an in-band modem channel.
    • Potentially Anticipates: Claims 1, 9 (enabling multiple concurrent voice calls over a single data link).

  51. US8953597B2

    • Full Citation: US8953597B2, Gopinath et al., published Feb 10, 2015, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Feb 10, 2015; Filing: Mar 15, 1999.
    • Brief Description: An integrated access device for providing packet voice and data services to subscribers over a single data link, including a POTS interface, modem, VoIP engine, and data interface with dynamic bandwidth allocation.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  52. US8964741B2

    • Full Citation: US8964741B2, Gopinath et al., published Feb 24, 2015, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Feb 24, 2015; Filing: Feb 29, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services over a single data link, with a focus on establishing in-band modem channels for voice and data.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  53. US8971350B2

    • Full Citation: US8971350B2, Gopinath et al., published Mar 3, 2015, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Mar 3, 2015; Filing: Aug 18, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services to subscribers over a single data link, with emphasis on bandwidth management between voice and data.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link with bandwidth management).

  54. US8995449B2

    • Full Citation: US8995449B2, Gopinath et al., published Mar 31, 2015, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Mar 31, 2015; Filing: Feb 29, 2000.
    • Brief Description: An integrated access device for providing packet voice and data services over a single data link, specifically concerning the communication of voice over IP over an in-band modem channel.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  55. US9049102B2

    • Full Citation: US9049102B2, Gopinath et al., published Jun 2, 2015, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jun 2, 2015; Filing: Mar 15, 1999.
    • Brief Description: Integrated access device for providing packet voice and data services to subscribers over a single data link, with components like a POTS interface, modem, VoIP engine, and data interface for bandwidth management.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  56. US9154425B2

    • Full Citation: US9154425B2, Gopinath et al., published Oct 6, 2015, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Oct 6, 2015; Filing: Sep 22, 1999.
    • Brief Description: Method and apparatus for enabling multiple concurrent voice calls over a single data link by establishing multiple logical voice channels over an in-band modem channel.
    • Potentially Anticipates: Claims 1, 9 (enabling multiple concurrent voice calls over a single data link).

  57. US9185121B2

    • Full Citation: US9185121B2, Gopinath et al., published Nov 10, 2015, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Nov 10, 2015; Filing: Aug 18, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services to subscribers over a single data link, including a POTS interface, modem, VoIP engine, and data interface.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  58. US9203929B2

    • Full Citation: US9203929B2, Gopinath et al., published Dec 1, 2015, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Dec 1, 2015; Filing: Feb 29, 2000.
    • Brief Description: An integrated access device for providing packet voice and data services over a single data link, with a focus on establishing in-band modem channels for voice and data.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link).

  59. US9237190B2

    • Full Citation: US9237190B2, Gopinath et al., published Jan 12, 2016, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jan 12, 2016; Filing: Aug 18, 2000.
    • Brief Description: Integrated access device for providing packet voice and data services to subscribers over a single data link, with emphasis on bandwidth management between voice and data.
    • Potentially Anticipates: Claims 1, 9 (integrated access device for packet voice and data services over a single data link with bandwidth management).

  60. US9246881B2

    • Full Citation: US9246881B2, Gopinath et al., published Jan 26, 2016, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Jan 26, 2016; Filing: Mar 15, 1999.
    • Brief Description: Multi-port VoIP gateway for providing VoIP services over a data link to multiple telephone sets.
    • Potentially Anticipates: Claims 1, 9 (multi-port VoIP gateway for services over a data link).

  61. US9264426B2

    • Full Citation: US9264426B2, Gopinath et al., published Feb 16, 2016, assigned to NetSpeak Corporation.
    • Publication/Filing Date: Publication: Feb 16, 2016; Filing: Aug 16, 2002.
    • Brief Description: Multi-service communication device capable of transmitting voice, video, and data signals over a data link, and routing these signals to appropriate interfaces.
    • Potentially Anticipates: Claims 1, 9 (multi-service communication device for voice, video, and data), and potentially Claim 13 (if its video capabilities are detailed further).

Summary of Potential Anticipation:
The vast majority of the cited prior art patents, particularly those assigned to NetSpeak Corporation, broadly cover aspects of Claims 1 and 9 of US9350649, which relate to a residential communication gateway (RCG) device and method for providing packetized voice and data services over a Plain Old Telephone Service (POTS) line. Many explicitly detail integrated access devices, VoIP engines, modems over POTS, and managing voice/data over a single data link, often with multiple telephone ports and bandwidth allocation.

Claim 13 (RCG with speakerphone and video camera for video telephone services) is potentially anticipated by US7061917B2 and US7327725B2 (and subsequent continuations like US8675661B2, US9264426B2) which explicitly mention a video interface for transmitting and receiving video signals in a multi-channel or multi-service communication device.

There is no direct explicit anticipation for Claims 17 and 18 (remote upgradability feature) or Claim 20 (method for transferring data files over a plurality of POTS lines, e.g., using multilink PPP) in the abstracts of the listed prior art. While remote management might be implicitly present in advanced network devices, explicit claims to "remote upgradability" or "multilink PPP over a plurality of POTS lines" are not evident from the provided abstracts, making these claims potentially more novel aspects of US9350649. A detailed analysis of the full text of each cited patent would be required for a definitive conclusion on these more specific claims.

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