Communication system and method for realizing terminal switching by crossing networks and operators

Abstract

The invention relates to a communication system and a method for realizing terminal switching by crossing networks and operators, which are used for converged networks and can realize the terminal switching by crossing different networks such as a telecommunication network, the internet or a radio and television network and the like, or crossing a plurality of different operators. The system is provided with an IP multimedia subsystem (IMS)-based switching terminal application server and three terminals, namely mobile equipment, a computer or a television set provided with a set-top box, wherein the switching terminal application server and the terminals establish or remove a calling by using a session initiation protocol (SIP) and transmit a signaling required by terminal switching. In the method, a switching request initiator is not limited by the network in which the terminal is positioned, and the switching mode is particularly flexible; and the method can realize the switching among different (same)-network same-number terminals or different (same)-network different-number terminals, wherein the switching operation can be performed on any party in a call (a calling party, a called party or a certain party in a multi-party calling), and both a two-party voice-frequency or video call and the terminal switching during the multi-party voice-frequency or video call controlled by a multimedia server are supported.

Description

Technical field [0001] The invention relates to a cross-network and cross-operator communication system and method for realizing terminal switching, and belongs to the field of communication technology. Background technique [0002] The integration of the three networks of telecommunication networks (including fixed networks and mobile networks), the Internet, and broadcasting and power grids is one of the main development directions of next-generation networks, and business integration is a manifestation of the integration of the three networks. However, for a long time, due to various reasons such as technical system, operation method and regulatory authority, China's three networks have always been operated and managed by multiple operators. Therefore, both network integration and business integration must consider cross-network and cross-operator factors, which has also caused technical difficulties or bottlenecks that have not yet achieved triple play. [0003] The cross-netw...

AI Technical Summary

Problems solved by technology

[0006] The shortcoming of this prior art is: this system will introduce media server

[0010] The disadvantage of the above technology is that although the mobile device does not need to install special terminal software, the call function is completed through the basic conversation service provided by the mobile communication operator

However, this feature also limits that the technology can only be applied within the same operator, and the switching request can only be initiated by the soft terminal, and can only be switched between the mobile device and the soft terminal with the same number, and cannot be switched between mobile devices. It is also impossible to switch between soft terminals, that is, switching is not flexible

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