Dynamic VoIP Trunk Configuration via ITSP Push
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Solution Overview
Problem
The dual configuration of Internet telephony services for private branch exchanges (PBXs) is burdensome and error-prone, especially in environments with dynamic IP addressing, requiring manual updates at both the PBX and the Internet telephony service provider (ITSP), which can be unattractive for small businesses due to complexity and potential for errors.
Innovation Solution
A method for dynamic configuration of Internet telephony services that involves providing requirements to the ITSP, establishing configuration data, and processing it at the PBX, using SIP messages such as INVITE, INFO, MESSAGE, SUBSCRIBE, and NOTIFY to automate the setup and updates, allowing for seamless handling of dynamic IP changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If dual configuration at both PBX and ITSP is implemented, then service functionality is complete, but configuration complexity and error risk increase
Solution Approach 1:
The patent extracts the configuration management function from the dual PBX-ITSP configuration process and consolidates it at the ITSP side. The ITSP now holds centralized control over trunk configuration, dynamically pushing settings to the PBX rather than requiring coordinated manual configuration at both ends. This extraction of management complexity to a single location resolves the contradiction by maintaining complete service functionality while eliminating the complexity and error risk of dual-sided configuration.
Solution Approach 2:
The patent introduces an intermediary configuration management system at the ITSP that mediates between service requirements and PBX configuration. This intermediary automatically translates service-level configurations into PBX-specific settings and dynamically pushes them to the PBX. The intermediary eliminates the need for manual dual configuration by acting as an automated bridge that manages the entire configuration lifecycle from a single point of control.
2Manufacturing precision
If manual updates are required at both PBX and ITSP, then configuration accuracy can be controlled, but time consumption and operational burden increase
Solution Approach 1:
The patent implements preliminary action by having the ITSP pre-configure all trunk settings, mapping policies, and routing parameters in a centralized configuration repository before deployment to the PBX. Configuration templates and policies are prepared in advance at the ITSP, validated for accuracy, then automatically pushed to the PBX when needed. This preliminary preparation ensures configuration accuracy while eliminating time-consuming manual updates at both locations during service changes.
Solution Approach 2:
The patent enables self-service by implementing automated configuration push mechanisms where the ITSP system automatically detects configuration changes, validates them, and pushes updated settings to the PBX without human intervention. The system self-manages the entire update lifecycle including change detection, validation, transmission, and application at the PBX. This self-service automation maintains configuration accuracy through built-in validation while reducing update time from manual dual-sided configuration to automated single-source deployment.
3Adaptability or versatility
If dynamic IP addressing is used, then connection flexibility improves, but configuration maintenance becomes difficult
Solution Approach 1:
The patent implements feedback mechanisms where the PBX periodically reports its current operational status including active IP addresses to the ITSP configuration management system. The ITSP receives this feedback, automatically detects IP address changes, and triggers dynamic reconfiguration of trunk settings to match the current network state. This continuous feedback loop maintains configuration accuracy despite dynamic IP changes while requiring no manual intervention from operators.
Solution Approach 2:
The patent applies dynamics by making the configuration management system adaptive to changing network conditions. Rather than static configuration that breaks with IP changes, the system continuously monitors network state through feedback and dynamically adjusts trunk configurations in real-time. Configuration parameters such as IP addresses, ports, and routing settings are automatically updated to reflect current network conditions, maintaining both IP flexibility and configuration ease through adaptive automation.
Data Source
AI summary
A method of configuring Internet telephony services for a private branch exchange includes providing the requirements for the private branch exchange to an Internet telephony service provider, establishing, at the Internet telephony service provider, configuration data for the requirements, providing the established configuration data to the private branch exchange, and processing the established configuration data at the private branch exchange.