Telephony Mode Identification for Secure Voice Communication
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Solution Overview
Problem
Existing communication protocols in Internet telephony do not provide automatic identification of telephony device modes, such as speaker, headset, or handset, which can lead to confidentiality breaches when sensitive information is shared, as users cannot ascertain the mode used by the listener.
Innovation Solution
A system and method for mode identification in Internet telephony, where a mode-identifying telephony device connects to a mode-selecting device through two links, using protocols like SCCP or H.323, to detect and notify the mode of the mode-selecting device, enabling secure sharing of confidential information by displaying or signaling the mode.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing communication protocols (SCCP, SIP, CDMA, GSM) are used, then communication over the network is enabled, but automatic identification of telephony device modes is not provided
Solution Approach 1:
The patent performs mode identification detection during the call setup phase, before the actual voice communication begins. The calling device sends a mode inquiry signal as part of the call initiation process, and the called device responds with its current mode status. This preliminary detection ensures that mode information is obtained before confidential information is shared, allowing users to make informed decisions about whether to proceed with the call.
Solution Approach 2:
The patent implements a feedback mechanism where the called device's mode status is automatically detected and communicated back to the calling device. The system sends an inquiry signal to query the called device's mode, receives the mode status in response, and then provides this information to the user. This closed-loop feedback enables automatic mode identification without requiring manual user input or intervention.
2Reliability
If users manually request mode switching through messages or telephony devices, then confidentiality can be maintained, but communication efficiency and user convenience deteriorate
Solution Approach 1:
The patent enables the system to automatically perform mode identification without requiring user intervention. The calling device autonomously sends mode inquiry signals, receives responses from the called device, processes the mode status information, and presents it to the user. This self-service capability eliminates the need for users to manually send messages or make separate requests to determine the called party's mode, significantly improving communication efficiency while maintaining confidentiality.
3Device complexity
If no mode identification system is implemented, then device complexity remains low, but security and reliability of confidential information sharing deteriorate
Solution Approach 1:
The patent divides the mode identification functionality into distinct modular components: a mode detection module that sends inquiry signals, a mode status reception module that processes responses, and a user notification module that displays the information. This segmentation allows the system to add sophisticated mode identification capabilities while maintaining clear separation of concerns, making the system easier to implement, maintain, and integrate with existing communication protocols without overwhelming complexity.
Data Source
AI summary
A method and an apparatus for the identification of the mode of a telephony device in a network are provided. A call initiation signal is received from a mode-identifying telephony device. The call initiation signal is used to communicate with a mode-selecting telephony device. Thereafter, the mode at the mode-selecting telephony device is detected and an answer mode signal, including the information regarding the answering mode of the mode-selecting telephony device, is sent to the mode-identifying telephony device.