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Method and system for implementing call forwarding service, and voice call continuous server

A technology of call transfer and voice call, which is applied in the field of mobile communication, can solve problems such as system resource waste, routing process delay, and link quality degradation, and achieve the effects of improving system resource utilization, improving link quality, and simplifying routing

Active Publication Date: 2008-06-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] It can be seen that in this case, although the second user terminal has withdrawn from the call, the route between the first user terminal and the third user terminal still needs to go through the MSC1, CSCF, VCCAS, and MGCF to which the second user terminal belongs, thus generating unnecessary The circuitous route makes the network elements that the route passes through too many and complicated, and the complicated routing process will bring a large delay, which will cause delay in the call of the user terminal and reduce the link quality; moreover, because the bearer and signaling are both Precious resources of the system, this situation will cause a waste of system resources

Method used

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  • Method and system for implementing call forwarding service, and voice call continuous server
  • Method and system for implementing call forwarding service, and voice call continuous server
  • Method and system for implementing call forwarding service, and voice call continuous server

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Embodiment Construction

[0064] The core of the present invention is that the second user terminal sends a call forwarding service request to VCCAS, and VCCAS generates and sends a call forwarding message instead of the second user terminal, and sends the call forwarding message to the first user terminal via AS-B, and the first user terminal according to the received call forwarding message The message is transferred, and a session with the third user terminal is established through AS-B.

[0065] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0066] There are two types of call transfer services: inquiry type and blind transfer. The second user terminal can select the type of call forwarding according to needs. Inquiry type is that after the second user terminal issues a call transfer command, it can have a conversat...

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PUM

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Abstract

The invention provides a method of fulfilling the call forwarding service, initially, a first user terminal and a second user terminal establish a session, the call forwarding of the second user terminal includes that: the second user terminal transmits a call forwarding service request to a VCCAS; the VCCAS generates a call forwarding message containing the first user terminal and an address of a third user terminal according to the received call forwarding service request, and the message is transmitted to the first user terminal after an application server shielding the address; the first user terminal establishes a session with the third user terminal through the application server according to the received call forwarding message. The invention also provides a system and the VCCAS of fulfilling the call forwarding service. The route can be simplified while the call forwarding service is fulfilled by adopting the invention, thereby reducing the delay and improving the quality of a link.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method, system and voice call continuity server for realizing call transfer service. Background technique [0002] Call transfer is a service in mobile communication, and a user terminal can connect a call to a third party by using call transfer. Specifically, during the call between the first user terminal and the second user terminal, the second user terminal transfers the call to the third user terminal to realize the call between the first user terminal and the third user terminal, and the second user terminal Exit this call. [0003] During the call transfer process, the routing situation will change accordingly. For example, a call forwarding routing scenario such as figure 1 shown. Firstly, a call is established between the first user terminal and the second user terminal, and a route is established between the MSC2 to which the first user terminal belon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04Q7/22H04M3/54H04M3/42H04Q7/38
Inventor 龙水平张翼
Owner HUAWEI TECH CO LTD
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