Multi-device Call Control System Synchronization
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Solution Overview
Problem
Current cellular phone network procedures for managing multiple end devices result in uncertainty about device status, leading to unnecessary network resource occupation and additional costs due to unsynchronized data records and restricted user settings for call forwarding.
Innovation Solution
A central call control system using GSM/UMTS network protocols and Intelligent Network Technology synchronizes mobility/profile databases to determine the status of end devices, optimizing call forwarding and parallel call attempts by polling and controlling the switching facilities to minimize resource usage and ensure correct network behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If parallel call delivery is used to multiple end devices, then call delivery coverage is improved, but network resource occupancy increases due to uncertain device status
Solution Approach 1:
The system performs preliminary status determination of end devices before initiating parallel call delivery. The control circuit queries the status of each end device (switched off, technically not reachable, busy) and uses this information to decide whether to attempt call delivery, thereby avoiding unnecessary network resource occupancy while maintaining call delivery coverage.
2Adaptability or versatility
If call forwarding is executed in the network area, then call delivery flexibility is improved, but network costs increase substantially
Solution Approach 1:
The system enables the user to manually determine and control call forwarding settings for each end device. Instead of the network automatically executing call forwarding which incurs substantial costs, the user is provided with the ability to configure call forwarding preferences locally on each device, thereby reducing network resource consumption while maintaining call delivery flexibility.
3Adaptability or versatility
If data records are separately assigned to each end device, then device independence is improved, but synchronization complexity increases
Solution Approach 1:
The system implements a feedback mechanism where the control circuit receives status information from each end device and uses this feedback to determine appropriate call delivery actions. This feedback loop enables the system to maintain device independence through separate data records while simplifying synchronization by using real-time status queries rather than complex manual synchronization procedures.
4Reliability
If user selection options for network services are restricted, then network behavior correctness is improved, but user configurability decreases
Solution Approach 1:
The system provides different levels of control at different locations in the call delivery process. For network-level services, the control circuit maintains restricted options to guarantee correct network behavior. For user-configurable services like call forwarding, the system provides manual control options on each end device. This local quality differentiation allows the system to maintain network behavior correctness while providing sufficient user configurability where needed.
Data Source
AI summary
The invention relates to a method and a system for controlling an arrangement of a configuration comprising two or more user devices (multi-device configuration) of telecommunication user devices in a public telecommunication network. According to the invention, the supplementary services of the public telecommunication network associated with the first user device or with an identification chip connected to the first user device are activated in such a manner that changes of the supplementary services are effective in the other user devices or the identification chip connected to the respective additional user device of the multi-device configuration at the same time or with a temporal delay. In this manner, when one or more parallel calls are switched to one or more user devices of the multi-device configuration, before delivery of the call, the kind of the call request resulting in a reservation of resources required for completing the call, the system states of the user devices to be called or of the identification chips connected to the user devices and the exchange devices involved therein are determined using an intelligent call control and the call can be delivered in a resource-saving manner.