Telephone Switch Routing for Simultaneous Mutual Calls
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Solution Overview
Problem
In telecommunications, particularly in mobile networks, simultaneous call attempts between users often result in busy signals, leading to frustration for users and increased operator costs due to wasted network resources and lost revenue opportunities.
Innovation Solution
A method that allows simultaneous call connections between users by routing both calls successfully, inserting a notification message to confirm call establishment, and using a telephone switch or multipoint control unit to bridge audio streams, thereby avoiding busy signals and enabling operators to charge for both calls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional call routing is used when two users simultaneously call each other, then one call must be interrupted to avoid network conflict, but this results in loss of revenue and user frustration
Solution Approach 1:
The patent merges two simultaneous call attempts (A→B and B→A) into a single conference call connection. The telephone switch detects the mutual call scenario and combines both call requests into one conference call, allowing both users to connect simultaneously without interrupting either call, thereby eliminating revenue loss while maintaining network stability
Solution Approach 2:
The system dynamically adjusts call routing based on real-time detection of mutual call attempts. When the switch identifies that user A is calling user B while user B simultaneously calls user A, it automatically transitions from traditional sequential routing to a conference call configuration, optimizing resource utilization and preventing call interruption
2Loss of energy
If traditional call routing is used when two users simultaneously call each other, then network resources are wasted due to call interruption and retry attempts, but implementing a new system increases device complexity
Solution Approach 1:
The telephone switch implements a feedback mechanism that monitors call establishment status in real-time. When the switch detects that both users are actively attempting to call each other simultaneously, it receives feedback about the mutual call scenario and automatically responds by converting the calls into a conference call, thereby optimizing network resource utilization without requiring complex external intervention
Solution Approach 2:
The system enables the telephone switch to automatically detect and resolve mutual call scenarios without external intervention. The switch itself identifies the simultaneous call condition and self-adjusts the routing configuration to create a conference call, eliminating the need for additional complex control systems or manual intervention while reducing network resource waste
3Productivity
If users are connected without notification in simultaneous calls, then the system operates simply, but users experience silent voice issues and may hang up, reducing call completion
Solution Approach 1:
The system performs preliminary action by inserting a notification message into the audio stream before the users become aware of the conference call connection. This advance notification prepares users for the simultaneous connection, preventing confusion and hang-ups, thereby improving call completion rates without requiring complex post-connection intervention
Data Source
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AI summary
A method and an apparatus for handling telephone calls between two users simultaneously calling one another, so that the telephone conversation between the two users is directly established, instead of keeping the user on hold by sending them the "busy user" signal or interrupting one of the two simultaneous calls to then complete the other one.