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:
Jun. 03, 2008
Filed:
Sep. 27, 2001
Peggy M. Stumer, Boca Raton, FL (US);
Peggy M. Stumer, Boca Raton, FL (US);
Siemens Communications, Inc., Boca Raton, FL (US);
Abstract
Voice over Internet Protocol (VoIP) private network call rerouting or switching, substantially transparent to both the caller and the called party. IP private network calls (e.g., VoIP private network) are automatically switched over a Public Services Telephone Network (PSTN) such as an Integrated Services Digital Network (ISDN) as the need arises. Alternate routing may occur because of, for example, network congestion, network outages, or detected poor Quality of Service (QoS) in the private network. Routing is over existing customer PSTN trunks and a dedicated Direct Inward Dial (DID) number, unlisted, that serves all users at a distributed system. Calls that may be switched to the PSTN (ISDN) are correlated with call associated information, such as a private calling user number, name, classmarks, Dialed Number Identification Services (DNIS), user group. VoIP calls made between users appear as intranetwork calls regardless of whether they are intranetwork calls or alternately routed.