IP Telephone Terminal Device with Multiple IP Modules
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Solution Overview
Problem
Conventional IP telephones require complex configurations and dedicated call-transferring functions, limiting their ability to realize various functions without an SIP server, especially in internal-telephone line systems, where calls can only be transferred to pre-registered numbers.
Innovation Solution
An IP telephone terminal device with multiple IP modules, a voice input/output unit, an IP-module selecting unit, and a voice controlling unit that allows selection of IP modules based on call commands and connects them to the voice input/output unit, enabling functions like call transferring and group calls without an SIP server.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a dedicated call-transferring function and pre-registered telephone numbers are used, then call transferring can be achieved, but device complexity and configuration difficulty increase
Solution Approach 1:
The IP telephone terminal device is equipped with multiple IP modules, each capable of independent IP telephone operations. This multi-functionality allows the device to handle various call functions (call transferring, holding, group calls) without requiring dedicated call-transferring hardware or SIP server dependency, thereby reducing device complexity while maintaining reliability
Solution Approach 2:
Each IP module can independently process call commands and establish connections without requiring pre-registration of telephone numbers or external SIP server assistance. The device serves itself by directly routing calls between opponent terminal devices based on received call commands, eliminating the need for complex pre-configuration
2Adaptability or versatility
If SIP server is used for call transferring, then various functions can be realized, but dependency on external server increases and configuration becomes more complex
Solution Approach 1:
The patent extracts the call control functionality from the external SIP server and embeds it directly into each IP module of the terminal device. By taking out the dependency on external SIP server infrastructure, the device achieves various call functions independently, reducing system configuration complexity while maintaining adaptability
Solution Approach 2:
The terminal device is segmented into multiple independent IP modules, each capable of autonomous operation. This segmentation allows each module to handle specific call functions independently without requiring centralized SIP server control, thereby reducing overall system configuration complexity while maintaining functional versatility
3Adaptability or versatility
If multiple IP modules are assigned with different IP telephone numbers, then flexible function realization is enabled, but device complexity increases
Solution Approach 1:
The device dynamically selects which IP module to activate based on the received call command. Rather than requiring complex static configuration of multiple IP modules, the system flexibly activates only the necessary module for each call scenario, achieving function flexibility while minimizing operational complexity
Data Source
AI summary
An internet protocol (IP) telephone device includes a plurality of IP modules and an IP-module selecting unit that selects an IP module based on a call command received from an opponent telephone terminal device.