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:
Aug. 25, 2026

Filed:

Jul. 15, 2024
Applicant:

Acer Incorporated, New Taipei City, TW;

Inventor:

Wen-Cheng Hsu, New Taipei City, TW;

Assignee:

ACER INCORPORATED, New Taipei City, TW;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04M 3/523 (2006.01); H04L 65/1055 (2022.01); H04L 65/1104 (2022.01); H04M 3/51 (2006.01); H04M 7/00 (2006.01);
U.S. Cl.
CPC ...
H04M 3/5231 (2013.01); H04L 65/1055 (2022.05); H04L 65/1104 (2022.05); H04M 3/5166 (2013.01); H04M 7/003 (2013.01); H04M 7/009 (2013.01);
Abstract

An internet telephone system, a private branch exchange device (PBX device) and a customer service scheduling method are provided. The internet telephone system includes a user device, a PBX device and at least one service extension. The user device includes a processing unit and a transmission unit. The PBX device includes a communication unit, an interactive voice response unit, a control unit and a distribution unit. In a call accessing procedure, the processing unit of the user device sets a push token into a first SIP header of a first session initiation protocol message (SIP message). If the service extension is busy, the control unit of the PBX device records the push token and the service extension to a scheduled call of a queue list and records a scheduling status of the scheduled call as 'pending'.


Find Patent Forward Citations

Hsu, Wen-Cheng. (2026). Internet telephone system, private branch exchange device and customer service scheduling method (U.S. Patent No. 12719987). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12719987

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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