Voice-Activated Dialing via Implicit and Explicit NFA Trunks
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Solution Overview
Problem
Users without VoIP phones cannot access voice dialing features without transitioning to a pure VoIP environment, limiting the functionality of voice-activated dialing systems in conventional telephone systems.
Innovation Solution
The Voice-Activated Dialing System establishes connections using both implicit and explicit NFA trunks, allowing for voice-activated dialing by translating spoken numbers into computer-readable formats and routing calls through a SIP feature server, maintaining core dialing plans within a conventional voice switch at a central office.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If users without VoIP phones want to access voice dialing features, then they can use the system, but they must transition to a pure VoIP environment which limits functionality in conventional telephone systems
Solution Approach 1:
The patent introduces an intermediary system that bridges conventional telephone systems and VoIP environments. The system uses a voice dialing platform that can interface with both legacy telephone infrastructure and IP-based networks, allowing users without VoIP phones to access voice dialing features through a gateway server that translates between conventional dialing protocols and VoIP protocols, eliminating the need for users to transition to a pure VoIP environment
2Ease of manufacture
If the system uses implicit NFA trunks for voice-activated dialing, then connection establishment is simplified, but the ability to maintain core dialing plans within conventional voice switches is compromised
Solution Approach 1:
The patent segments the trunk connection system into implicit and explicit NFA trunks. Implicit trunks are used for initial connection establishment to simplify gateway server requirements, while explicit trunks are used for maintaining core dialing plans within conventional voice switches. This segmentation allows each trunk type to serve its specific function optimally without compromising the other
Solution Approach 2:
The system dynamically switches between implicit and explicit trunk types based on the operational requirements. The voice dialing platform can transition from using implicit trunks for initial setup to using explicit trunks for maintaining dialing plans, allowing the system to adapt its trunk usage based on whether connection simplicity or dialing plan reliability is the priority
3Adaptability or versatility
If the system establishes multiple connections (first, second, and third connections) for voice-activated dialing, then connection flexibility is improved, but system complexity increases
Solution Approach 1:
The patent implements preliminary action by establishing the first connection before the actual voice dialing operation. The system pre-establishes connection pathways using implicit and explicit trunks, so that when voice-activated dialing is needed, the infrastructure is already in place. This preliminary connection setup simplifies the overall process by avoiding the need to create multiple complex connections during the actual dialing operation
Data Source
AI summary
A system and method for voice-activated dialing using implicit and explicit trunks including receiving a call from the user telephone and establishing a first connection. In response to establishing the first connection, a second connection may be established over the implicit trunk. In response to establishing the second connection, a third connection may be initiated. In response to the user telephone sending a keyword, the implicit trunk may be disconnected and the call may be connected via the explicit trunk. If a spoken number is received, then the spoken number may be translated into a computer readable telephone number. Alternatively, if a dialed telephone number is received from the user telephone, the telephone number may be used to route the call. In response to receiving the telephone number, the explicit trunk may be disconnected and the call from the user telephone may be routed to the received telephone number.