Method, device and system for adding or removing conference participants in multi-party conference

Abstract

The embodiment of the invention provides a method, a device and a system for adding or removing conference participants in a multi-party conference. The method comprises the following steps: MSAN to which a first user facility belongs receives a FACILITY message transmitted by the first user facility for adding or removing conference participants; the first user facility is a participant of the multi-party conference and is a PSTN terminal or an ISDN terminal; the FACILITY message is mapped into a REFER message which is converted into an INVITE message for adding conference participants by AS or into a BYE message for removing conference participants; then the INVITE message or the BYE message is transmitted to the MSAN to which a second user facility belongs. With the technical proposal of the embodiment of the invention adopted, the traditional telephone terminal users can add conference participants in the process of the conference.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a method for adding or removing conference participants in a multi-party conference, related equipment and a system. Background technique [0002] In NGN (Next Generation Network, next-generation network) architecture, IMS (IP Multimedia Subsystem, IP multimedia system) and PSTN (Public Switched Telephone Network, public switched telephone network) / ISDN (Integrated Services Digital Network, integrated service data network) emulator The system is the key two subsystems. Among them, IMS is the core technology of the next generation network, which can provide multimedia services such as audio, video, text, and instant messages, and uses SIP (Session Initial Protocol, Session Initialization Protocol) as the IMS control layer protocol to carry call control signaling. Provide unified multimedia services. The PSTN / ISDN emulation subsystem provides users of traditional telephone...

AI Technical Summary

Problems solved by technology

[0005] The prior art only defines the process of how to add or remove a conference participant in a multi-party conference service when the calling user A is an IMS user, but does not describe how the calling user is a traditional telephone terminal user (for example, an ISDN terminal user or PSTN terminal user), how to add or remove a conference participant in a multi-party conference

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