公开(公告)号：US20180255109A1

公开(公告)日：2018-09-06

申请号：US15446122

申请日：2017-03-01

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： LAKSHMINARASHIMHAN NAIDU ,  MICHAEL TAYLOR ,  BERNARD KU

IPC: H04L29/06 ,  H04W8/24 ,  H04L29/12 ,  H04M7/00

CPC classification number: H04L65/1069 ,  H04L61/1511 ,  H04L65/1003 ,  H04L65/1016 ,  H04L65/607 ,  H04M7/0072 ,  H04W8/24 ,  H04W84/042

Abstract: Aspects of the subject disclosure may include, for example, determining from a transport protocol message, capability information associated with user equipment associated with a call session, determining a first codec to provide a first media service to the user equipment associated with the call session according to the capability information, and responsive to determining the first codec, searching a codec table to obtain a first resource identifier associated with a first media resource function to provide the first media service according to the first codec. If the first resource identifier associated with the first codec is not available at the codec table, accessing the first resource identifier associated with the first media resource function from a domain name server and, in turn, transmitting a first request to the first media resource function to provide the first media service to the user equipment associated with the call session. Other embodiments are disclosed.

公开(公告)号：US20170118065A1

公开(公告)日：2017-04-27

申请号：US15398922

申请日：2017-01-05

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： BERNARD KU ,  LAKSHMINARASHIMHAN NAIDU ,  ARMSTRONG SOO

IPC: H04L12/24 ,  H04W8/26 ,  H04L29/06 ,  H04W76/02

CPC classification number: H04L41/0654 ,  H04L61/157 ,  H04L65/10 ,  H04L65/1006 ,  H04L65/602 ,  H04W8/26 ,  H04W36/0022 ,  H04W76/12 ,  H04W88/181

Abstract: A network may include a method that includes, for example, receiving a communication request responsive to a telephone number mapping query failure, where the communication request is initiated by an originating communication device requesting a communication session with a terminating communication device, foregoing initiating the communication session as a circuit-switched communication session responsive to determining that the originating communication device and the terminating communication device are enabled to use packet-switched communications, and instructing a second network node to initiate the communication session as a packet-switched communication session between the originating communication device and the terminating communication device responsive to the determination. Other embodiments are disclosed.

公开(公告)号：US20180034971A1

公开(公告)日：2018-02-01

申请号：US15224967

申请日：2016-08-01

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： Bernard KU ,  LAKSHMINARASHIMHAN NAIDU ,  JAMES W. FORSYTH

IPC: H04M7/00 ,  H04L29/12

CPC classification number: H04M7/0063 ,  H04L61/1511 ,  H04L61/157 ,  H04L61/304 ,  H04L61/605 ,  H04M7/0075

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.

公开(公告)号：US20170230618A1

公开(公告)日：2017-08-10

申请号：US15497811

申请日：2017-04-26

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： LAKSHMINARASHIMHAN NAIDU ,  THOMAS P. BENZAIA ,  BERNARD KU

IPC: H04N7/15 ,  H04N7/14

CPC classification number: H04N7/15 ,  H04N7/147 ,  H04N7/148

Abstract: A system that incorporates teachings of the present disclosure may include, for example, a computer-readable storage medium in a media controller having computer instructions to execute a soft-phone client application on the media processor, receive a call originating from an internet protocol multimedia subsystem network where the calls are directed to the media processor by a gateway having a switch that routes the call in accordance with a destination address included in a session initiation protocol header message, and selectively answer the call at any of a plurality of terminal devices including a mobile cellular phone coupled to the media processor via a femtocell. The computer instructions can be operable to present an audio portion of the call through a speaker of a presentation device operatively coupled to the media processor. Other embodiments are disclosed.

公开(公告)号：US20170187675A1

公开(公告)日：2017-06-29

申请号：US15399780

申请日：2017-01-06

Applicant: AT&T INTELLECTUAL PROPERTY I, L.P.

Inventor： JAMES W. FORSYTH ,  BERNARD KU ,  LAKSHMINARASHIMHAN NAIDU

IPC: H04L29/12 ,  H04M7/00

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.

公开(公告)号：US20170104714A1

公开(公告)日：2017-04-13

申请号：US14881559

申请日：2015-10-13

Applicant: AT&T Intellectual Property I, L.P.

Inventor： LAKSHMINARASHIMHAN NAIDU ,  Bernard S. Ku ,  Thomas P. Benzaia

IPC: H04L29/12 ,  H04L12/725 ,  H04L29/08

CPC classification number: H04L61/1511 ,  H04L45/3065 ,  H04L61/1552 ,  H04L67/1014

Abstract: In one embodiment, a method and apparatus for resolving domain name system queries using unique top-level domains in a private network space are disclosed. For example, the method determines that a domain name service query specifies a destination residing in a private network space rather than in a public Internet space. The method then routes the domain name service query to a top-level domain name service server associated with the private network space, without routing the domain name service query to a root domain name service server in the public Internet space. The top-level domain name system server resides in the highest level of a hierarchy of domain name system servers belonging to the private network space.