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:
Oct. 28, 2025

Filed:

Aug. 31, 2022
Applicant:

Microsoft Technology Licensing, Llc, Redmond, WA (US);

Inventors:

Russell Andrew Penar, Highlands Ranch, CO (US);

Noah Kipling Weis, Denver, CO (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 45/28 (2022.01); H04L 45/00 (2022.01);
U.S. Cl.
CPC ...
H04L 45/22 (2013.01); H04L 45/28 (2013.01);
Abstract

A method for high availability routing of a communication is provided. A broadcast routing message that includes a voice termination identifier is received from a communication service. Based upon the broadcast routing message, a secondary path for routing communications to an endpoint of the communication service associated with the voice termination identifier is identified. The secondary path provides an alternative route around a primary route over a packet-switched network to the communication service. An indication to setup a call to the endpoint. A metric for the primary route for the call through the service provider network connection that does not meet a defined condition is identified. In response to identifying that the metric for the primary route for the call through the service provider network connection does not meet the defined condition, the call is routed using the secondary path to the endpoint through the communication service.


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