Abstract: A battery cell includes: a shell, including a first wall; an electrode assembly, disposed inside the shell; and a terminal assembly, including an electrode terminal and an elastic member. The electrode terminal includes a fixed portion for electrical connection with the electrode assembly and a movable portion for electrical connection with a current collecting component. The fixed portion is fixedly disposed on the first wall. The movable portion is movably disposed on the first wall, and has a first position in contact with the fixed portion and a second position separated from the fixed portion. The elastic member is used for applying elastic force to the movable portion to maintain the movable portion in the first position. The movable portion is configured to move from the first position to the second position against the elastic force when internal pressure of the battery cell reaches a threshold.

Abstract: The invention discloses a method for establishing a session between a caller and a callee, applying to a next generation network, after said callee picking up, which includes: restarting a session negotiation with said callee via a first application server corresponding to the callee, upon obtaining a session description protocol of said callee, sending an update request message containing a session description protocol of said callee to a second application server corresponding to the caller; renegotiating, by the second application server, session with a caller according to said session description protocol of said callee; after the caller completing session update, returning a response message containing a session description protocol of said caller to said callee. The method can realize the multi-service nesting triggering or the forwarding triggering of several flows in one service, and can guarantee the proper connection between the caller and the callee.

Abstract: A conference control method includes: an Application Server (AS) sets a digit collection template for the conference session; a Media Resource Server (MRS) detects and collects dialing operations of participants on the conference session according to the digit collection template set by the AS, and reports the digit collection result to the AS; the AS controls the conference according to the received digit collection result. A conference control system includes an AS and an MRS, where the AS is adapted to set a digit collection template for the conference session and send the set digit collection template information to the MRS, and adapted to receive the digit collection result from the MRS and control a conference according to the received digit collection result; the MRS is adapted to detect and collect dialing operations of participants on the conference session according to the digit collection template set by the AS, and send the digit collection result to the AS.

Abstract: Disclosed herein is a method and a network structure for moving a call leg, and implementing a call leg move with the network structure. The method includes creating a call leg moving interface and its method interface reference parameters, which are used to move a call leg from an original call to a destination call. The interface reference parameters are an identifier of a call leg to be moved and a destination call identifier. The method further includes, if an application wants to move the call leg, determining the interface reference parameters according to the call leg and the destination call, and invoking the call leg moving interface to move the call leg from the original call to the destination call with the interface reference parameters. In this manner, the disclosed method provides a simple, convenient, easy to implement and spread interface to the application to move the call leg from one call to another.

Abstract: A conference control method includes: an Application Server (AS) sets a digit collection template for the conference session; a Media Resource Server (MRS) detects and collects dialing operations of participants on the conference session according to the digit collection template set by the AS, and reports the digit collection result to the AS; the AS controls the conference according to the received digit collection result. A conference control system includes an AS and an MRS, where the AS is adapted to set a digit collection template for the conference session and send the set digit collection template information to the MRS, and adapted to receive the digit collection result from the MRS and control a conference according to the received digit collection result; the MRS is adapted to detect and collect dialing operations of participants on the conference session according to the digit collection template set by the AS, and send the digit collection result to the AS.

Abstract: A method and a system for preventing a crosstalk of color ring back tone are provided. When a plurality of entities in the network provide a color ring back tone service for a call simultaneously, an Application Server determines whether a ring back tone or prompt tone of a called party needs to be screened according to a predefined strategy. If the ring back tone or prompt tone of the called party needs to be screened, the Application Server screens the ring back tone played by the called party according to service logic and plays a ring back tone provided by the value-added service to the calling user. An Application Server is also provided.

Abstract: The present invention provides a method for processing a call to ensure that the call is selected to be deassigned or released when a value-added service can not be provided according to current application resources state. The method includes: receiving, by an AS, a value-added service call triggered by a switching device; determining whether the call can be deassigned according to a preconfigured service policy when the AS finds the value-added service can not be provided according to a current resource state; sending a notification for deassigning the call to the switching device when a determining result is that the call can be deassigned; and processing, by the switching device, the value-added service call as a call not triggering the value-added service. The present invention further provides a system, an AS and a switching device for processing a call.

Abstract: The invention discloses a method for establishing a session between a caller and a callee, applying to a next generation network, after said callee picking up, which includes: restarting a session negotiation with said callee via a first application server corresponding to the callee, upon obtaining a session description protocol of said callee, sending an update request message containing a session description protocol of said callee to a second application server corresponding to the caller; renegotiating, by the second application server, session with a caller according to said session description protocol of said callee; after the caller completing session update, returning a response message containing a session description protocol of said caller to said callee. The method can realize the multi-service nesting triggering or the forwarding triggering of several flows in one service, and can guarantee the proper connection between the caller and the callee.

Abstract: The present invention discloses a method for playing audio/video files in a console at a conference in the next generation network. The method includes the following steps: the conference console sends a request for playing the audio/video files to a conference application server; the media resource server determines a media channel between the media resource server and the conference console in accordance with a request sent by the conference application server; the conference console converts a format of media streams of the audio/video files into a format supported by the media resource server, and transfers the converted media streams to the media resource server via the media channel; and the media resource server plays media stream information of the audio/video files to conference terminals. The present invention achieves playing both audio files and video files with an excellent effect, irrespective of whether the local facilities have corresponding functions of playing audio or video files.

Abstract: Disclosed herein is a method and a network structure for moving a call leg, and implementing a call leg move with the network structure. The method includes creating a call leg moving interface and its method interface reference parameters, which are used to move a call leg from an original call to a destination call. The interface reference parameters are an identifier of a call leg to be moved and a destination call identifier. The method further includes, if an application wants to move the call leg, determining the interface reference parameters according to the call leg and the destination call, and invoking the call leg moving interface to move the call leg from the original call to the destination call with the interface reference parameters. In this manner, the disclosed method provides a simple, convenient, easy to implement and spread interface to the application to move the call leg from one call to another.