Signaling Processor for Secure Data Transmission
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Solution Overview
Problem
Existing call processing systems, such as those using DTMF clamping or masking, face issues like DTMF bleed through, customer verbalization of card details, and high maintenance costs due to the need for physical security audits, which compromise the security of sensitive information during telephone transactions.
Innovation Solution
A system with a signaling processor that analyzes and modifies signaling data to remove or replace sensitive information, using separate communication channels for media and signaling data, allowing for secure transmission without sacrificing usability or increasing operating costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DTMF clamping or masking is used to prevent sensitive data transmission, then security of sensitive information is improved, but DTMF bleed through occurs and maintenance costs increase
Solution Approach 1:
The patent extracts sensitive data from the media channel and transmits it separately through the signaling channel. The signaling processor identifies sensitive information in the media stream, removes it, and sends only non-sensitive portions to the agent, while transmitting full sensitive data directly to the payment processor through signaling data.
Solution Approach 2:
The patent segments the data transmission into two separate channels: media channel for voice communication and signaling channel for data transmission. This segmentation allows sensitive data to be handled differently from regular communication, enabling secure processing without compromising audio quality or requiring complex filtering.
2Reliability
If separate communication channels are used for media and signaling data, then security of sensitive information is improved, but device complexity increases
Solution Approach 1:
The patent makes the signaling processor multi-functional by enabling it to perform both media processing (identifying and removing sensitive data from audio streams) and signaling processing (transmitting data through separate channel). This consolidation reduces overall system complexity despite the addition of separate channels.
Solution Approach 2:
The signaling processor acts as an intermediary that receives media data, extracts sensitive information, and routes appropriate data streams to different destinations (agent or payment processor). This intermediary approach simplifies the architecture by centralizing the security function rather than distributing complexity across multiple components.
Data Source
AI summary
The present invention provides systems and methods for controlling signaling data transmitted over a communication system between a first party and a second party. The system comprises a first communication channel configured to carry communication data, wherein the communication data comprises the content of the communication between the first party and the second party; a second communication channel configured to carry signaling data, wherein the signaling data comprises data relating to the first communication channel and sensitive data transmitted by the first party; a signaling processor configured to receive the signaling data from the first party via the second communication channel, modify the signaling data to remove or replace at least some of the sensitive data in the signaling data, and transmit the modified signaling data via the second communication channel to the second party.