Telephone Switch Dial Conversion for Mobile Call Pick-Up
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Solution Overview
Problem
In systems with Fixed Mobile Convergence (FMC) linking, incoming calls cannot be picked up from a mobile terminal, forcing employees with only a mobile terminal to use another person's fixed telephone, which is inconvenient.
Innovation Solution
A telephone switch with a receiving dial table and a conversion dial table that converts dial data from a mobile terminal into a call pick-up number, allowing incoming calls to be picked up from a mobile terminal by determining matching dial data and using a dial conversion unit to switch the call to the mobile terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If FMC linking is implemented to allow mobile terminals to replace fixed telephones, then employee mobility and flexibility are improved, but the ability to pick up incoming calls from mobile terminals is lost
Solution Approach 1:
The patent introduces a dial conversion unit as an intermediary component that translates dial data from mobile terminals into formats recognizable by the telephone switch's call pick-up function. This mediator enables communication between the mobile terminal and the traditional call pick-up system, resolving the incompatibility without requiring changes to the core telephone switch architecture.
Solution Approach 2:
The patent changes the parameter format of dial data by converting mobile terminal dial data into call pick-up numbers through the dial conversion unit. This parameter transformation allows the mobile terminal to interact with the call pick-up function by altering the data format from mobile dialing parameters to traditional extension dialing parameters.
2Ease of operation
If traditional call pick-up systems are used with fixed telephones, then call pick-up functionality is maintained, but employees without fixed telephones cannot pick up calls
Solution Approach 1:
The patent makes the call pick-up system universal by enabling it to accept dial data from both fixed telephones and mobile terminals. The dial conversion unit provides a interface that accommodates multiple types of terminals, allowing the traditional call pick-up function to serve diverse user needs without requiring separate systems for mobile and fixed telephone users.
3Adaptability or versatility
If mobile terminals are registered in the extension number management table, then FMC linking is enabled, but the telephone switch cannot recognize dial data from mobile terminals for call pick-up
Solution Approach 1:
The dial conversion unit serves as an intermediary that bridges the gap between the extension number management table (which stores mobile terminal registrations) and the call pick-up function (which expects traditional dial data formats). It translates the registered mobile terminal dial data into a format the call pick-up function can recognize and process.
Solution Approach 2:
The patent replaces the traditional mechanical recognition system (where the telephone switch directly recognizes dial data from fixed telephones) with a software-based conversion system. The dial conversion unit uses software processing to translate and recognize dial data from mobile terminals, substituting the direct hardware-based recognition mechanism with a more flexible software intermediary.
Data Source
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AI summary
Provided is a telephone switch such that an incoming call to an extension within the telephone switch can be picked up from a mobile terminal. The telephone switch includes: a receiving dial table which registers dial data that a mobile terminal uses to pick up an incoming call to a fixed-line telephone connected to the telephone switch; a conversion dial table which registers a call pick-up number used within the telephone switch for carrying out call pick-up of an incoming call to the fixed-line telephone; and a dial conversion unit configured such that when dial data sent by the mobile terminal is received when there is an incoming call to a fixed-line telephone, the dial conversion unit determines whether or not the received dial data sent from the mobile terminal matches the dial data in the receiving dial table, and if the dial data match, converts the received dial data to a call pick-up number in the conversion dial table such that the incoming call to the fixed-line telephone is picked up from the mobile terminal.