The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Nov. 29, 2022

Filed:

Apr. 09, 2020
Applicant:

At&t Intellectual Property I, L.p., Atlanta, GA (US);

Inventors:

Bernard S. Ku, Austin, TX (US);

Lakshminarashimhan Naidu, Pearland, TX (US);

James W. Forsyth, Royal Oak, MI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 7/00 (2006.01); H04L 61/4511 (2022.01); H04L 61/4557 (2022.01);
U.S. Cl.
CPC ...
H04M 7/0075 (2013.01); H04L 61/4511 (2022.05); H04L 61/4557 (2022.05);
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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