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.:
Date of Patent:
May. 29, 2012
Filed:
Nov. 23, 2005
Jinyong MA, Shenzhen, CN;
Jinyong Ma, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
An apparatus for switching a user between an IP network and a PSTN is disclosed in the present invention and includes a user port, a Subscriber Line Interface Circuit, a detection circuit, a PSTN port, an IP network interface circuit and an action unit. A method for switching a user between the IP network and the PSTN is also disclosed. According to the method, the action unit is controlled by the control signal from a CPU, thereby implementing the user switching between the IP network and the PSTN on the apparatus. The apparatus and the method enable one or more users to switch between the IP network and the PSTN, implements flexible user selection between the two networks and offers user communication backup when failure occurs. Accordingly, the present invention increases the satisfaction of users and the core competence of enterprises.