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:
Oct. 08, 2013
Filed:
Nov. 20, 2009
Haopeng Zhu, Shenzhen, CN;
Jianmin Liu, Shenzhen, CN;
Yichu Zheng, Shenzhen, CN;
Yu Sun, Shenzhen, CN;
Haoyu Wang, Shenzhen, CN;
Lingyan Wu, Shenzhen, CN;
Haopeng Zhu, Shenzhen, CN;
Jianmin Liu, Shenzhen, CN;
Yichu Zheng, Shenzhen, CN;
Yu Sun, Shenzhen, CN;
Haoyu Wang, Shenzhen, CN;
Lingyan Wu, Shenzhen, CN;
Huawei Technologies Co., Ltd., Shenzhen, CN;
Abstract
A method for implementing Ring Back Tone (RBT) interworking, a Media Gateway Control Function (MGCF) device, and an Application Server (AS) are provided. A Multimedia Ring Back Tone (MRBT) service is triggered when a Circuit Switched (CS) user originates a call to an MRBT subscriber in an Internet Protocol Multimedia Subsystem (IMS). The method includes: receiving a message sent by an MRBT AS, where the message carries video RBT information; and notifying a Mobile Switching Center (MSC) to put through a calling terminal if determining that a video RBT needs to be played to the calling terminal according to the message. Therefore, a video RBT can be played when a CS user originates a call to an IMS user in the case of network interworking. An IMS video RBT may be played to the calling party when the CS user originates a call to the IMS user.