Distributed IP Telephony Tracking Filter Node
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Solution Overview
Problem
Existing communication systems face complexity and inefficiency in tracking and filtering calls due to the need to modify multiple protocols and interpret signaling messages across different protocols, especially when calls bridge interconnected domains with different protocols, and the requirement for artificial signaling messages during established calls.
Innovation Solution
A method and system for distributed telephony tracking and filtering, where a filter node determines the filter status of a call and communicates this status to remote nodes, allowing them to take appropriate actions without embedding information in existing communication protocols, enabling modular implementation and end-to-end tracking and filtering services.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If tracking information is embedded in existing communication protocols, then call tracking capability is achieved, but system complexity increases due to modifying multiple protocols and interpreting signaling messages across different protocols
Solution Approach 1:
The patent introduces a dedicated tracking information structure that acts as an intermediary layer between the communication protocols and the tracking functionality. This structure carries tracking information independently without requiring modifications to existing communication protocols, thereby resolving the contradiction by maintaining tracking capability while eliminating protocol modification complexity
Solution Approach 2:
The patent segments the call tracking functionality from the communication protocol itself by using separate tracking information structures that can be processed independently. This allows the tracking system to operate without interfering with or modifying the underlying communication protocols, thus reducing system complexity while preserving tracking capability
2Reliability
If artificial signaling messages are generated to convey tracking information during established calls, then tracking information can be transmitted, but message quantity and processing overhead increase
Solution Approach 1:
The patent creates a universal tracking information structure that can be integrated into existing signaling messages without requiring separate artificial messages. This multi-functional approach allows the same message structure to serve both communication and tracking purposes, reducing the total quantity of messages while ensuring reliable tracking information transmission
Data Source
AI summary
A method of filtering telecommunication service includes receiving a call that includes a call identifier. The method also includes determining a filter status of the call and transmitting a notification message to a remote node. The notification message identifies the call identifier and the filter status of the call.