Distributed Record Server Architecture for VoIP Call Session Integrity
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Solution Overview
Problem
Current recording schemes for VoIP networks face challenges in recovering from failures during call sessions without compromising the recording or system efficiency, especially when call session segments are distributed across multiple record servers, leading to incomplete or erroneous recordings that can affect business rules and compliance in industries like finance.
Innovation Solution
A distributed record server architecture that tags recorded segments with status and integrity indicators, allowing for segmentation synchronization across multiple servers to gather and store complete call sessions, and includes a proxy server for load balancing and failover control to ensure accurate recording.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple record servers are used to provide redundancy and failover protection, then system reliability is improved, but the complexity of managing recording failures and ensuring complete call session recording increases
Solution Approach 1:
The patent segments the recording process by dividing the call session into multiple recording segments that can be distributed across different record servers. Each segment is identified by a unique segment ID and timestamp, allowing the system to manage partial recordings independently. This segmentation enables the system to handle failures at the segment level rather than requiring complete recording success, thereby reducing overall system complexity while maintaining reliability.
Solution Approach 2:
The patent implements a feedback mechanism where the communications manager receives recording status information from record servers and uses this feedback to determine whether complete call session recording occurred. The system monitors recording completion status and provides feedback to the enterprise application, enabling automatic handling of partial recordings without requiring complex manual intervention. This feedback loop simplifies failure management by automating the decision-making process.
2Productivity
If call session segments are distributed across multiple record servers, then system efficiency and redundancy are improved, but the accuracy and completeness of the recorded call session may be compromised
Solution Approach 1:
The patent divides the call session recording into discrete segments with unique identifiers and timestamps, allowing distributed storage across multiple record servers. Each segment maintains its integrity independently while the system tracks the complete sequence through segment IDs. This segmentation approach enables high system efficiency through parallel processing and redundancy, while maintaining recording completeness through proper segment tracking and assembly.
Solution Approach 2:
The patent replaces traditional mechanical recording systems with a distributed digital recording architecture using multiple record servers. This substitution enables parallel recording operations that improve system efficiency while maintaining accuracy through digital integrity checks and segment tracking mechanisms. The system uses software-based coordination rather than hardware-based control, allowing for more flexible and reliable recording distribution.
3Reliability
If the system automatically deletes recorded call sessions upon receiving failure notification, then data integrity is maintained, but business operations are disrupted due to loss of potentially complete recording segments
Solution Approach 1:
The patent applies partial action by deleting only the incomplete recording segments rather than the entire call session recording. The system identifies which segments are incomplete based on recording status feedback and selectively deletes only those segments, preserving complete segments for business operations. This partial deletion approach maintains data integrity for failed recordings while preserving useful data from successful recordings, thereby continuing business operations without disruption.
Solution Approach 2:
The patent implements a feedback mechanism where the communications manager receives detailed recording status information from record servers about which segments completed successfully and which failed. This feedback enables the system to make informed decisions about which recordings to delete and which to preserve. The enterprise application receives accurate information about recording completeness, allowing it to handle partial recordings appropriately without unnecessarily deleting potentially useful data, thus maintaining both data integrity and business operation continuity.
Data Source
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AI summary
Devices, systems, and methods for recording call sessions over a VoIP network using a distributed record server architecture are disclosed. An example recording device for recording segments of a call session includes a record server configured to receive an agent voice data stream and an external caller voice data stream from an agent telephone station, and a file repository configured to store voice data and call data associated with each recorded segment of the call session. The recording device is configured to tag recorded segments of each call session, which can be later used by a third-party application or database to check the status and/or integrity of the recorded call session.