SIP Proxy Interworking IP-PBX and SFU Conference Systems
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Solution Overview
Problem
Existing conference systems fail to interwork effectively between Internet Protocol-Private Branch Exchange (IP-PBX) and conference systems based on Selective Forwarding Unit (SFU) architecture, limiting disaster recovery and conference upgrade capabilities.
Innovation Solution
A conference system is designed to integrate an IP-PBX subsystem with a conference subsystem, utilizing a SIP proxy service module to transmit signaling between PBX and SBC modules, enabling interworking between the two subsystems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If IP-PBX and conference system based on SFU architecture are used separately, then each system can operate independently, but they cannot interwork with each other
Solution Approach 1:
A SIP proxy service module is introduced as an intermediary component between the IP-PBX subsystem and the conference subsystem. This SIP proxy receives SIP signaling from the IP-PBX, translates it into the private protocol used by the conference system, and forwards it to the conference subsystem. This mediator enables interworking between the two previously incompatible systems without requiring complex direct integration.
2Adaptability or versatility
If SIP protocol is used for conference system, then full interworking with IP-PBX is achieved, but disaster recovery capability is limited
Solution Approach 1:
The conference system is designed to support multiple protocols simultaneously - both SIP protocol for interworking with IP-PBX and private protocol for core conference functions. This multi-functional approach allows the system to maintain SIP compatibility for disaster recovery scenarios while preserving the enhanced capabilities of the private protocol for normal operations, thus achieving both interworking and reliability goals.
3Device complexity
If only point-to-point conference upgrade function is provided, then implementation is simple, but conference scale is limited
Solution Approach 1:
The conference system implements dynamic conference scaling capabilities where the conference subsystem can adaptively handle varying numbers of participants and conference types. The system dynamically allocates resources and manages multiple conference instances simultaneously, transitioning from static point-to-point connections to dynamic multi-party conferencing while maintaining manageable complexity through modular architecture.
Data Source
AI summary
A conference system includes an Internet Protocol-Private Branch Exchange (IP-PBX) subsystem and a conference subsystem, where the IP-PBX subsystem includes a PBX service module, a Session Initiation Protocol (SIP) proxy service module, and a plurality of session border controller (SBC) modules; the SIP proxy service module is configured to transmit signaling between the PBX service module and the SBC modules, find an accessible conference subsystem, and enable the IP-PBX subsystem to interwork with the accessible conference subsystem; and the conference subsystem includes a conference room connector, and the conference room connector is configured to connect a videoconferencing device to the conference system for registration, and receive the signaling between the PBX service module and several SBC modules that is transmitted by the SIP proxy service module. The present disclosure realizes interworking between the IP-PBX subsystem and the conference subsystem, and improves experience and competitiveness of communication technologies and solutions.