Switching Unit Callback Prioritization and Reachability
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Solution Overview
Problem
Existing methods for establishing telecommunication connections through callback functions, such as CCBS and CCNR, often leave calling subscribers unreachable to other callers during waiting periods and fail to prioritize callbacks effectively, leading to inefficient use of resources and unsuccessful connections.
Innovation Solution
A method where configuration data is used to determine the optimal time for callbacks, allowing prioritization of callbacks based on the target subscriber's accessibility and activity status, ensuring that the calling subscriber remains reachable and reducing unnecessary callback attempts by considering the target subscriber's availability and engagement status.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a calling subscriber leaves a callback request in the switching unit, then the calling subscriber can be notified when the target subscriber becomes available, but the calling subscriber remains unreachable to other callers during the waiting period
Solution Approach 1:
The patent segments the calling subscriber's terminal state into two independent parts: the callback request processing state and the availability state for other callers. The terminal is divided into a first state (unavailable due to callback request) and a second state (available for other callers), allowing simultaneous handling of both scenarios without mutual interference
2Ease of operation
If the switching unit processes multiple callback requests in order, then all calling subscribers receive equal treatment, but the target subscriber may be called at inappropriate times reducing connection success
Solution Approach 1:
The patent introduces dynamic prioritization where the switching unit can adjust callback processing order based on real-time conditions. The system dynamically determines processing sequence by evaluating target subscriber availability, time of day, and other factors, transforming the static first-come-first-served approach into a flexible adaptive system that optimizes connection success
3Reliability
If the switching unit places the calling subscriber's terminal in a busy state during callback waiting, then the callback request is protected from interruption, but the calling subscriber cannot receive other calls or communications
Solution Approach 1:
The patent segments the terminal's operational states to allow parallel processing of different call types. The terminal is divided into states that distinguish between callback-related unavailability and general availability, enabling the terminal to remain accessible for non-callback communications while protecting the callback request from interruption
Data Source
AI summary
The invention concerns a method for establishing a telecommunication connection between a calling subscriber (1) and a target subscriber (5), in which a calling terminal (R) of the calling subscriber (1) and a target terminal (Z) of the target subscriber (5) are assigned to a switching unit (100) and the calling subscriber (1) enters a callback request (CCBS-REQ, CCNR-REQ) in the switching unit (100) if the target terminal (Z) is busy or cannot be reached when a first call is made from the calling terminal (R) to the target terminal (Z), in which configuration data regarding the accessibility of the target subscriber (5) for a callback are entered into the switching unit (100). Then the time is set for the switching unit (100) to make the pending callback (RC) to the calling subscriber (1) in order to generate a second call to the target subscriber (5) by processing the configuration data concerning the accessibility of the target subscriber (5) for a callback, at a time when the target subscriber (5) is reachable for a callback. Next, the switching unit (100) makes the pending callback (RC) to the calling subscriber (1) at the set time.