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:
Sep. 07, 2010
Filed:
Jun. 22, 2004
Haijun Liu, Shenzhen, CN;
Jin Sun, Shenzhen, CN;
Haijun Liu, Shenzhen, CN;
Jin Sun, Shenzhen, CN;
ZTE Corporation, Shenzhen, CN;
Abstract
A method for protecting incoming calls in coloring ring back tone service, wherein comprising: the service switching point device sends a message for triggering intelligent networks service to the service control point device; the service control point device instructs the service switching point device to connect the call to the intelligent peripheral; the service control point device reports the connect result and reason to the service control point device; the service control point device analyzes the connect result as well as its reason, if there is a need to protect the call, the service control point device will instruct the service switching point device to connect the called number directly; again, the service switching point device sends a message for triggering intelligent network service to the service control point device; the service control point device sends down the continue message, and the service switching point device will connect the called number. The present invention improves the coloring ring back tone service logic, thereby preventing the service control point device from releasing the call upon receiving a message of call failure, and improving the call completing rate during utilizing coloring ring back tone service.