Huawei Technologies Co., Limited

Yihua Cheng

Xiaoqing Hu

Yi Cheng Zhang

Hui Zhang

Bin Wang

Qian Yu

Shiqian Li

Junrong Xu

Xuanming Lu

Xiaodong Zhao

Yongfeng Cai

Jihong Dong

Yichu Zheng

Xiaojun Mo

Youjun Chen

Zujian Li

Guofan Tong

Weirong Jin

Guodao Yang

Shichang Xiao

Jiaqing Liu

Yonghong Wu

A method, network device, and network system for implementing the Voice Call Continuity (VCC) service are provided. The method includes: receiving an Initial Detection Point (IDP) message from a Mobile Switching Center (MSC); querying whether an address of a Service Control Point (SCP) of a user is null; if the address of the SCP is not null, sending the IDP message to the SCP and interacting with the SCP; and detecting whether a subsequent message from the SCP is a Connect or Continue message; if the subsequent message from the SCP is the Connect or Continue message, copying the Connect or Continue message to a new Connect message and sending the new Connect message to the MSC for implementing the VCC service. According to the present invention, a new SCPvcc is used to support the VCC service, thus implementing the VCC service for all mobile users.

Method, network device, and network system for implementing voice call continuity service

A Multimedia Customized Ring Back Tone (MRBT) service platform, a terminal and a system for implementing an MRBT service are provided in the present invention. A method for implementing an MRBT service is further disclosed, which includes: performing, by a Multimedia Ring Back Tone (MRBT) platform, a first media capability negotiation with a calling party before a called party answers a call after the calling party initiates the call to the called party; playing, by the MRBT platform, an MRBT for the calling party according to the result of the first media capability negotiation. The scheme of the present invention may implement an MRBT service in a 3G communication network.

System and method for implementing multimedia ring back tone service

A system for implementing multimedia ring back tone service is disclosed, which includes a communication network, an MRBT platform storing multimedia ring back tones in the communication network and a VIG. The MRBT platform is respectively connected to the Service Switch Center dominating the terminal and an MGW in the communication network through the VIG; when a calling terminal initiates a call through the Service Switch Center, the VIG establishes a communication link from the terminal to the MRBT platform through the MGW and the VIG before the call is put through; and MRBT platform plays multimedia ring back tones for the calling terminal via the established communication link. The present invention also provides a method for implementing multimedia ring back tone service is also disclosed. The system and the method can implement multimedia ring back tone service in 3G communication networks.

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.

System and method for providing RBT in communication network

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Shenzhen, China

Yihua Cheng