Call handover method and device and system

Abstract

The invention provides a call handover method and device and a system. The call handover method comprises the following steps: receiving a handover request message sent by a second called terminal, wherein the handover request message is used for switching a call between a calling terminal and a first called terminal to be between the calling terminal and the second called terminal, wherein a second called number which corresponds to the second called terminal is an associated number of the first called number which corresponds to the first called terminal; and establishing a signaling link between the second called terminal and the calling terminal according to the handover request message in order to establish a second media link between the calling terminal and the second called terminal. Through adoption of the call handover method and device and the system, the call is not interrupted when a called user answers the call of a calling user through another called terminal on the basis that the called user answers the call of the calling user through a certain called terminal.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method, device and system for call switching. Background technique [0002] For the convenience of the user, when the calling terminal calls a called number, multiple called terminals can ring, so that the called user can use any one of the multiple called terminals to communicate with the calling user. For example, one number service. [0003] In the prior art, the multiple called terminals may ring sequentially or simultaneously, and the called user may use any one of the called terminals to answer the call (for example, the called user uses the called terminal 1 to answer the call). After the called user uses the called terminal 1 to answer the call, a media link is established between the calling terminal and the called terminal 1, so that the calling user and the called user can use the media link to communicate. If after the calling user talks with the called user, th...

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a method, device and system for call switching, which is used to solve the problem that the called user uses a certain called terminal to communicate with the calling user in the prior art. When the calling user made a call, the call was interrupted

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