Method for switching between one-number multi-client terminals without interrupting call

Abstract

The invention discloses a method for switching between one-number multi-client terminals without interrupting a call. A multimedia subsystem (IMS) network comprises a plurality of attribution domains, a single attribution domain comprises a plurality of users and all terminal devices of a single user use a one-number multi-client service. The method is characterized in that: a one-number multi-client server is configured in the middle of an IMS network application service layer, the one-number multi-client server participates in conversation, manages an end-to-end medium stream transmission path between the terminal devices of a calling party and a called party, caches and forwards medium streams. The method has the technical advantages that: the plurality of terminal devices in the one-number multi-client service relationship can be switched optionally during the conversation and not required to re-dial the number.

Description

technical field [0001] The present invention relates to a communication technology, in particular to a method for switching between multiple terminals on one number and multiple terminals without interrupting the call. Background technique [0002] In the IMS (IP Multimedia Subsystem) system, a user has multiple types of terminals, including soft terminals (soft phones installed on personal computers), fixed telephones (IP or PSTN), mobile terminals (mobile phones), etc. demand. The IMS system will generate a set of corresponding service subscription information data for the user, and insert the subscription information data into the HSS (Home Subscriber Server) of the user's home domain. The contract information data carries the corresponding service key. After receiving the message, the service control point creates the business logic of one-number multi-machine according to the business key, and processes it according to the one-number and multi-machine contract ...

AI Technical Summary

Problems solved by technology

One-number multi-device business logic makes when a user uses any terminal to call the other party, the other party's terminal displays the same calling number; when called, all terminals of the user ring at the same time and are ready to answer according to the business logic , the user can freely choose any terminal to answer the call; however, when the user is using a certain terminal, or because the location signal is not good, or the communication quality of the terminal is not good, or he wants to change the communication method, then, when When the user activates another terminal device, the dialing operation needs to be performed again

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