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.

Patent No.:

US 9294591 B1

PDF
Full Text
Expired
Date of Patent:
Mar. 22, 2016

Filed:

Mar. 20, 2015
Applicant:

At&t Intellectual Property I, Lp, Atlanta, GA (US);

Inventors:

Lakshminarashimhan Naidu, Pearland, TX (US);

Bernard Ku, Austin, TX (US);

Saji Varughese, Austin, TX (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04L 29/06 (2006.01); H04L 29/12 (2006.01); G06F 15/16 (2006.01);
U.S. Cl.
CPC ...
H04L 69/167 (2013.01); H04L 29/06197 (2013.01); H04L 29/12971 (2013.01); H04L 61/1511 (2013.01); H04L 65/1006 (2013.01); H04L 65/1016 (2013.01); H04L 65/1069 (2013.01); H04L 67/42 (2013.01); H04L 61/6059 (2013.01);
Abstract

A method that incorporates teachings of the subject disclosure may include, for example, transmitting a first query to a domain naming server responsive to receiving a session initiation protocol message comprising a fully qualified domain name. The first query can include one of an internet protocol version 4 address query or an internet protocol version 6 address query associated with the fully qualified domain name. The method can include receiving at least one answer from the domain naming server. The at least one answer can include at least one of an internet protocol version 4 address having no errors, a second internet protocol version 6 address having no errors, or both. The method can also include transmitting a message to a communication device. The message can include information associated with the at least one answer.


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