What is a three-way call? How to operate?

Patent Name: Method, device and system for tripartite communication.

Technical field:

The invention relates to the field of communication, in particular to a method, a device and a system for tripartite communication.

Background art:

With the continuous development of modern network technology, the telecommunication network has developed from the traditional circuit-based PSTN (Public Switched Telephone Network) to the present NGN (Next Generation Network) based on packet switching. NGN network takes softswitch as the core control device and SIP (Session Initiation Protocol) as the main call control protocol. A strategic focus of softswitch network is to provide group customer solutions to ensure the operating income of the network by attracting large customers. With soft switch technology as the core, the key customer attendant console system can provide economical and convenient comprehensive services for cross-regional group customers, mainly used in hotels, large and medium-sized enterprises and other group customers, providing users with all kinds of intimate services, which is favored by operators and users. With the increasing application of three-way call function, users often hope to initiate three-way call efficiently through simple operation when using three-way call function. However, due to the limitation of objective conditions, it is difficult to achieve the above simple and efficient goals.

Summary of the invention

Aiming at the problem that it is difficult to realize simple and efficient tripartite communication due to the limitation of objective conditions in the related art, the purpose of the present invention is to provide a tripartite communication method, device and system to solve the above problems. In order to achieve the above object, according to one aspect of the present invention, a three-way call method is provided. The three-way call method according to the invention comprises the following steps: the attendant console server receives a request message from the attendant console client, wherein the request message is used for requesting to initiate a three-way call between the attendant console client, a calling user and a called user; The attendant console server applies for the conference resources of the three-way call to the soft switch device according to the request message; The attendant console server informs the attendant console client, the calling user and the called user to use conference resources for three-way call. Further, the attendant console server applies for the conference resources of the three-way call to the soft switch device according to the request message, including: the attendant console server generates the conference identification code according to the request message; The attendant console server applies for the conference resources associated with the conference identification code of the three-way call to the soft switch equipment. Further, the attendant console client, the calling user and the called user are in a plurality of softswitch devices; The attendant console server applies for conference resources for three-way call from soft switch devices according to the request message, including the attendant console server determining a soft switch device among a plurality of soft switch devices; According to the request message, the attendant console server applies for the conference resources of the three-way call to the determined soft switch equipment. Further, the attendant console server informs the attendant console client, the calling user and the called user to use the conference resources for three-way call, including that the attendant console server sends invitation messages to the attendant console client, the calling user and the called user respectively, and the invitation messages carry the conference resources; The attendant console client, the calling user and the called user convert the remote media into conference resources; The attendant console client, the calling user and the called user make a tripartite call.

Further, after the attendant console server informs the attendant console client, the calling user and the called user to use the conference resources for the tripartite call, the method further comprises that the attendant console client, the calling user or the called user ends the tripartite call.

Further, after the attendant console client ends the three-way call, the method further comprises that the attendant console server receives a call end request message from the attendant console client; The attendant console server applies to the softswitch device for releasing conference resources; The attendant console server applies for voice holding resources from the softswitch equipment; The attendant console server converts the remote media of the calling user into voice holding resources; The attendant console server changes the remote media of the called user into the calling media of the attendant console client; The attendant console server changes the remote media of the attendant console client to the calling media of the called user.

Further, after the calling user finishes the three-way call, the method further comprises the following steps: the attendant console server receives a call ending request message from the calling user; The attendant console server applies to the softswitch device for releasing conference resources; The attendant console server changes the remote media of the called user into the calling media of the attendant console client; The attendant console server changes the remote media of the attendant console client to the calling media of the called user.

Further, after the called user ends the three-way call, the method also includes: the attendant console server receives the call end request message from the called user; The attendant console server applies to the softswitch device for releasing conference resources; The attendant console server applies for voice holding resources from the softswitch equipment; The attendant console server changes the far-end media of the calling party into voice holding resources.

In order to achieve the above object, according to another aspect of the present invention, there is provided an attendant console server.

The attendant console server according to the present invention includes: a receiving module for receiving a request message from the attendant console client, which is used for requesting to initiate a three-way call between the attendant console client, a calling user and a called user; An application module, which is used to apply for conference resources for three-way call to the soft switch device according to the request message; And the notification module is used for notifying the attendant console client, the calling user and the called user to use conference resources for three-way call.

In order to achieve the above object, according to another aspect of the present invention, a three-way call system is provided.

The three-party call system according to the present invention comprises a switchboard server, a switchboard client, a calling user, a called user and a soft switch device; The attendant console server comprises a receiving module used for receiving a request message from the attendant console client, wherein the request message is used for requesting to initiate a tripartite conversation among the attendant console client, a calling user and a called user; An application module, which is used to apply for conference resources for three-way call to the soft switch device according to the request message; And the notification module is used for notifying the attendant console client, the calling user and the called user to use conference resources for three-way call.

Through the interaction between the attendant console server and the softswitch equipment, the invention fully utilizes the flexibility of the SIP protocol and the existing softswitch software and hardware resources on the basis of the existing SIP signaling flow, solves the problem that the three-way call is greatly restricted under objective conditions in related technologies, and effectively improves the working efficiency.