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公开(公告)号：US10116802B2
公开(公告)日：2018-10-30
申请号：US15782565
申请日：2017-10-12
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bernard S. Ku , Lakshminarashimhan Naidu , James W. Forsyth
Abstract: Aspects of the subject disclosure may include, for example, a method and system to interconnect a first communications carrier to a second communications carrier by receiving a request to connect a communication from a first carrier to a second carrier; modifying a private ENUM (tElephone NUmber Mapping) domain of the request to include an intercarrier ENUM apex based domain; retrieving a routing record using a domain name server (DNS) indicated by the intercarrier ENUM apex based domain; and routing the communication to the second carrier using the routing record. Other embodiments are disclosed.
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公开(公告)号：US20170126750A1
公开(公告)日：2017-05-04
申请号：US14928256
申请日：2015-10-30
Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
Inventor： Bernard S. Ku , James W. Forsyth , Lakshminarashimhan Naidu
IPC: H04L29/06 , G06F17/30 , H04M7/00 , H04L29/12 , H04L12/741
CPC classification number: H04L65/1069 , G06F17/30914 , G06F17/30979 , H04L45/74 , H04L61/1511 , H04L61/157 , H04L65/1016 , H04L65/104 , H04M7/006
Abstract: A system for providing an architecture for enabling internet protocol (IP) carrier peering is disclosed. The system provides mechanisms for providing carrier telephone number mapping (ENUM)-based routing for subscribers of a first carrier to locate and connect with subscribers of another IP peering carrier. The system may receive an IP call from a first device of a first carrier that is destined for a second device of a second carrier. The call is forwarded to a breakout gateway control function/transit function that initiates a modified ENUM query to an internetwork packet exchange partner (IPX-P) network using an intercarrier ENUM apex domain. To retrieve a record for routing the call, the modified ENUM query is sent to an IPX-P ENUM via a domain name service name server record configuration directing to the IP address of the IPX-P ENUM. Based on the record, the call is then routed to the second device.
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公开(公告)号：US10887355B2
公开(公告)日：2021-01-05
申请号：US16012353
申请日：2018-06-19
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bernard Ku , James W. Forsyth
Abstract: An aspect of the subject disclosure may include, for example, receiving a request from a communication device to initiate a communication session in a packet-switched network, obtaining a first name authority pointer record responsive to determining that there is an undesirable operational state in the packet-switched network, wherein the first name authority pointer record comprises a null record, obtaining a second name authority pointer record responsive to determining that there is a desirable operational state in the packet-switched network, wherein the second name authority pointer record comprises a record, and initiating the communication session according to one of the first name authority pointer record or the second name authority pointer record. Other embodiments are disclosed.
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公开(公告)号：US20200236219A1
公开(公告)日：2020-07-23
申请号：US16844470
申请日：2020-04-09
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bernard S. Ku , Lakshminarashimhan Naidu , James W. Forsyth
Abstract: Aspects of the subject disclosure may include, for example, a method and system to interconnect a first communications carrier to a second communications carrier by receiving a request to connect a communication from a first carrier to a second carrier; filtering the request to identify a specific name authority pointer (NPA-NXX) number from a plurality of specific name authority pointer (NPA-NXX) numbers; when the filter identifies the specific name authority pointer (NPA-NXX) number, modifying a private ENUM (tElephone NUmber Mapping) domain of the request to include an intercarrier ENUM apex based domain with a DNS (domain name server) recursion zone; retrieving a routing record using a domain name server (DNS) indicated by the intercarrier ENUM apex based domain; and routing the communication to the second carrier using the routing record. Other embodiments are disclosed.
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公开(公告)号：US20190320069A1
公开(公告)日：2019-10-17
申请号：US16450295
申请日：2019-06-24
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bernard S. Ku , Lakshminarashimhan Naidu , James W. Forsyth
Abstract: Aspects of the subject disclosure may include, for example, a method and system to interconnect a first communications carrier to a second communications carrier by receiving a request to connect a communication from a first carrier to a second carrier; filtering the request to identify a specific name authority pointer (NPA-NXX) number from a plurality of specific name authority pointer (NPA-NXX) numbers; when the filter identifies the specific name authority pointer (NPA-NXX) number, modifying a private ENUM (tElephone NUmber Mapping) domain of the request to include an intercarrier ENUM apex based domain with a DNS (domain name server) recursion zone; retrieving a routing record using a domain name server (DNS) indicated by the intercarrier ENUM apex based domain; and routing the communication to the second carrier using the routing record. Other embodiments are disclosed.
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Patent Agency Ranking
公开(公告)号：US20190174004A1
公开(公告)日：2019-06-06
申请号：US16270638
申请日：2019-02-08
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bernard Ku , Lakshminarashimhan Naidu , James W. Forsyth
Abstract: Aspects of the subject disclosure may include, for example, responsive to determining that a second device is associated with a first carrier network, obtaining a first record associated with a called number of the second device from a first carrier network telephone number mapping equipment server of the first carrier network, and transmitting a first internet protocol address for the second device from the first record to a terminating call session control function server of the first carrier network to initiate the internet protocol call session. Responsive to a second determination that the second device is associated with a second carrier network, obtaining a second record associated with the called number according to a pointer to a second carrier network telephone number mapping equipment server of the second carrier network, and transmitting a second internet protocol address for the second device derived from the second record to a session border controller of the first carrier network to initiate the internet protocol call session. Other embodiments are disclosed.
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公开(公告)号：US20190141008A1
公开(公告)日：2019-05-09
申请号：US16238330
申请日：2019-01-02
Applicant: AT&T Intellectual Property I, L.P.
Inventor： James W. Forsyth , Bernard Ku , Lakshminarashimhan Naidu
CPC classification number: H04L61/1552 , H04L61/106 , H04L61/1523 , H04L61/157 , H04L61/605 , H04M3/229 , H04M3/42348 , H04M7/0075
Abstract: A method that incorporates teachings of the subject disclosure may include, for example, determining at a first directory server of a first regional call processing system whether a new name authority pointer associated with a telephone number is within a first geographic region of the first regional call processing system, transmitting the new name authority pointer to a first name server of the first regional call processing system for provisioning the name authority pointer to the first name server responsive to determining that the telephone number is located within the first geographic region, and transmitting the new name authority pointer to a second directory server for provisioning the new name authority pointer to a second name server of a second regional call processing system responsive to determining that the telephone number is not located within the first geographic region. Other embodiments are disclosed.
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公开(公告)号：US20180084115A1
公开(公告)日：2018-03-22
申请号：US15782565
申请日：2017-10-12
Applicant: AT&T Intellectual Property I, L.P.
Inventor： Bernard S. Ku , Lakshminarashimhan Naidu , James W. Forsyth
CPC classification number: H04M7/0075 , H04L61/1511 , H04L61/157
Abstract: Aspects of the subject disclosure may include, for example, a method and system to interconnect a first communications carrier to a second communications carrier by receiving a request to connect a communication from a first carrier to a second carrier; modifying a private ENUM (tElephone NUmber Mapping) domain of the request to include an intercarrier ENUM apex based domain; retrieving a routing record using a domain name server (DNS) indicated by the intercarrier ENUM apex based domain; and routing the communication to the second carrier using the routing record. Other embodiments are disclosed.
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公开(公告)号：US10715483B2
公开(公告)日：2020-07-14
申请号：US16238330
申请日：2019-01-02
Applicant: AT&T Intellectual Property I, L.P.
Inventor： James W. Forsyth , Bernard Ku , Lakshminarashimhan Naidu
Abstract: A method that incorporates teachings of the subject disclosure may include, for example, determining at a first directory server of a first regional call processing system whether a new name authority pointer associated with a telephone number is within a first geographic region of the first regional call processing system, transmitting the new name authority pointer to a first name server of the first regional call processing system for provisioning the name authority pointer to the first name server responsive to determining that the telephone number is located within the first geographic region, and transmitting the new name authority pointer to a second directory server for provisioning the new name authority pointer to a second name server of a second regional call processing system responsive to determining that the telephone number is not located within the first geographic region. Other embodiments are disclosed.
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公开(公告)号：US10313300B2
公开(公告)日：2019-06-04
申请号：US15051212
申请日：2016-02-23
Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.
Inventor： Bernard S. Ku , Lakshminarashimhan Naidu , James W. Forsyth
Abstract: A method includes receiving, at a network component of a first carrier network from a source device, a telephone number of a destination device configured to communicate via a second carrier network. The method further includes in response to a query message sent to a telephone number mapping device of an internetwork packet exchange network, receiving a name server record at the network component, the name server record indicating a domain name associated with a second telephone number mapping device of the second carrier network. The method also includes in response to the network component sending the domain name to a domain name server of the internetwork packet exchange network, receiving an Internet protocol address of the second telephone number mapping device. The method includes sending, from the network component to the second telephone number device, a second query message based on the Internet protocol address.
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