Communication Terminal Call Initiation Suppression

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Solution Overview

Problem

In scenarios where two communication terminal apparatuses initiate calls almost simultaneously, the calls frequently fail to be answered, leading to repeated failed attempts at establishing a telephone connection.

Innovation Solution

A communication terminal apparatus is equipped with a processor and memory that determines if a call initiation failure is simultaneous with another terminal's attempt, and upon confirmation, outputs information to suppress further call initiation, such as a 'please wait' message, to prevent repeated failures.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If both communication terminal apparatuses initiate calls simultaneously, then each terminal attempts to establish a call connection, but the calls fail to be answered and repeated failures occur

Engineering Contradiction:

Improvecall connection establishmentVSAvoidtime for repeated failed call attempts

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The system performs preliminary detection to identify simultaneous call initiation scenarios before actual call failure occurs. By detecting the mutual call condition in advance, the system can preemptively suppress one of the calls, preventing the failure and avoiding repeated attempt cycles.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The system implements a feedback mechanism where call initiation status and outcomes are monitored and communicated back to the terminals. When simultaneous initiation is detected, feedback signals prompt one terminal to suppress its call attempt, enabling adaptive response to the conflict condition.

Inventive Principle:

Principle #23Feedback

2Ease of operation

If a user waits for an incoming call instead of initiating simultaneously, then call establishment becomes smoother, but this requires automatic detection and suppression mechanisms

Engineering Contradiction:

Improvecall establishment processVSAvoidcall initiation suppression mechanism

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The system enables terminals to automatically detect simultaneous call conditions and self-regulate their call initiation behavior without requiring user intervention. The terminal that should wait is automatically identified and suppresses its call attempt, making the system self-managing for this conflict resolution.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The system introduces asymmetry in the call initiation process by differentiating between terminals based on detection timing or identification criteria. One terminal is designated to initiate while the other is suppressed, creating an asymmetric outcome from the symmetric simultaneous initiation scenario.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS9203959B2Communication terminal apparatus and call-initiation suppression method

Publication Date: 2015.12.01 FCNT LLC

AI summary

A communication terminal apparatus includes a memory, and a processor coupled to the memory, configured to when an incoming-call notice is received, determine whether or not, among calls that have been initiated and that have failed to be answered, a call for which a number of a call reception destination matches a number of a call initiation source included in the incoming-call notice and for which a time related to initiation of the call and a time related to the incoming-call notice have a given relationship therebetween has been initiated, and when the call has been initiated, cause the communication terminal apparatus or a communication terminal apparatus that is the call reception destination to output information indicating suppression of initiation of a call.