Huawei Technologies Co., Limited

Yongfeng Cai

Bin Wang

Xuanming Lu

Junrong Xu

Yi Cheng Zhang

Min Wang

Xiaodong Zhao

Yi Zhang

Qian Yu

Shiqian Li

Xiaoqing Hu

Yihua Cheng

Wenhu Zhang

Yaodong Liu

Youjun Chen

Guofan Tong

Zujian Li

Haifeng Xu

Jianjun Ding

Xiaojun Mo

Taiyong Dun

Jihong Dong

Guodao Yang

Shichang Xiao

Jiaqing Liu

Yonghong Wu

Haihua Hu

Disclosed are systems and methods for providing ring back tones in a communication network. At first, a ring back tone device for storing and playing the ring back tone customized by a subscriber is established in the communication network. Whether a subscriber is a ring back tone service register subscriber is judged with a certain triggering mode, such as intelligent network triggering, signaling interception triggering, call forwarding triggering or switching device triggering. If it is judged the subscriber is a ring back tone service registered subscriber, a connection between the originating switching device and the terminating switching device and a connection between a switching device and the ring back tone device are established. When the called terminal is idle, the ring back tone device provides a piece of customized ring back tone to the calling subscriber for replacing traditional ring back tone.

Providing ring back tones in a communication network

The present invention discloses a CDMA intelligent network system and a method for implementing an international roaming service. The CDMA intelligent network system includes: a Home SCP, a Home Gateway Mobile Switching Center (GMSC) or Home International Switching Center (ISC), and a visited GMSC or visited ISC; further, the CDMA intelligent network system includes a roaming SSP. The SCP is in communication with the roaming SSP, and voice channels are established among the roaming SSP, the Home GMSC or ISC, and the visited GMSC or ISC. The present invention further discloses a roaming Service Switching Point, which is adapted for signaling exchanging with the Home SCP of subscriber in international roaming, so as to establish a service route for the subscriber in international roaming in the CDMA intelligent network.

CDMA intelligent network system and its method, device for realizing international roaming service

System and method for providing RBT in communication network

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Shenzhen, China

Yongfeng Cai