Telecommunications System In-Band DTMF Signaling Latency
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Solution Overview
Problem
Modern telecommunications systems experience latency and compatibility issues due to reliance on data and SMS capabilities for device security verification and call routing management, particularly in saturated cellular environments and heterogeneous carrier systems, leading to poor call forwarding and caller-ID masking performance.
Innovation Solution
A system and method that utilizes a primary mobile device, secondary mobile device, call-handling switch, and cloud server node to synchronize configuration and telemetry data, enabling in-band DTMF signaling for caller-ID and converting DTMF signals to data signals for seamless call forwarding and unification across multiple devices and carrier systems, minimizing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If data and SMS capabilities are used for device security verification and call routing management, then system functionality is improved, but latency increases and compatibility is lost between systems
Solution Approach 1:
The patent segments the signaling function into two parts: authentication and routing data are separated from voice communication. Authentication credentials and routing information are embedded within the voice call signaling channel rather than using separate data/SMS channels, eliminating the need to wait for data network establishment and reducing latency.
Solution Approach 2:
The voice communication channel is made multi-functional by using it not only for voice transmission but also for carrying authentication credentials and routing information through in-band signaling. This allows the same channel to serve multiple purposes simultaneously, eliminating the need for separate data/SMS channels and improving compatibility across voice-only and data-capable systems.
2Loss of time
If in-band DTMF signaling is used for caller-ID and call routing, then latency is reduced and compatibility is improved, but system complexity increases
Solution Approach 1:
The patent combines multiple signaling functions (caller-ID transmission, authentication verification, call routing) into a single in-band DTMF signaling channel. By merging these functions into the existing voice communication path, the system avoids the complexity of maintaining separate data and SMS signaling channels while reducing latency.
Solution Approach 2:
The system uses existing DTMF tone generation and detection capabilities already present in telephony systems to carry authentication and routing information. Rather than introducing new complex signaling protocols, the system leverages the self-service nature of DTMF tones that can be generated and detected by standard telephone equipment.
Data Source
AI summary
The telecommunications system of the present disclosure is designed for modern edge scalability to support one-number unification of multiple voice communication devices registered through heterogenous pots, cellular, and VOIP/SIP providers. The system advantageously utilizes only voice or audio services and requiring device data or SMS capabilities for device security verification and call routing management. Within this framework, actual secured device requests for call routing have an overhead limited to approximately a few seconds. The telecommunication system allows a viable service to function well in saturated cellular environments and poor signal scenarios due to prioritization of voice-channels over data and SMS network packets on 2G, 3G, 4G, and next generation cellular technology.