Server Apparatus for Centralized VoIP Speech Quality Control
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Solution Overview
Problem
Current communication systems between IP terminals in VoIP networks require individual bandwidth control and audio level adjustments, which can be inefficient and lack centralized management, especially in ensuring consistent speech quality across different terminals.
Innovation Solution
A network architecture with a server apparatus, such as an IP-PBX, that detects speech quality, calculates optimal settings, and notifies IP terminals, using a back-to-back user agent (B2BUA) mechanism to modularize SIP processing, allowing centralized control of bandwidth and audio levels for all terminals, ensuring consistent communication quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual bandwidth control and audio level adjustments are performed between IP terminals, then communication flexibility is maintained, but speech quality consistency deteriorates
Solution Approach 1:
The patent introduces a server as an intermediary between IP terminals. The server detects speech quality between terminals, calculates optimal settings, and notifies terminals of the optimal configuration. This mediator approach maintains the flexibility of individual terminal control while ensuring consistent speech quality across the network through centralized management.
2Reliability
If centralized speech quality management is implemented, then speech quality consistency is improved, but system complexity increases
Solution Approach 1:
The server is designed to perform multiple functions: detecting speech quality between terminals, calculating optimal speech quality settings, and notifying terminals of the optimal configuration. By consolidating these diverse functions into a single multi-functional server, the system achieves centralized speech quality management without proportionally increasing overall system complexity.
3Adaptability or versatility
If terminal negotiation is required for bandwidth and audio level settings, then communication adaptability is maintained, but communication efficiency deteriorates
Solution Approach 1:
The server performs preliminary actions by detecting speech quality and calculating optimal settings before actual communication begins. The server notifies terminals of optimal bandwidth and audio level settings in advance, allowing terminals to configure themselves without requiring time-consuming negotiation during communication establishment. This preliminary configuration improves communication efficiency while maintaining adaptability.
Data Source
AI summary
A network includes Internet protocol (IP) terminals for establishing communication using an initiation protocol used in connection-oriented communication in which connection to a destination is confirmed over an IP network for the communication; and a server apparatus constituting the network along with the IP terminals. The server apparatus includes a detecting unit for detecting a speech quality between the IP terminals; a calculating unit for calculating an optimal speech quality based on the detected speech quality information; and a notifying unit for notifying the IP terminals establishing communication of the calculated optimal speech quality. The IP terminals establish communication with the speech quality being set to the optimal speech quality, which the server apparatus notifies to the IP terminals.