Distributed Call Transfer in Network Devices
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Solution Overview
Problem
Current multimedia communication systems rely on central processing equipment for call transfer functionality, which limits scalability and increases costs due to the need for expensive upgrades as the number of users and call processing requirements grow.
Innovation Solution
Implementing local call transfer functionality within network devices, allowing them to function as originators, recipients, or transferees, eliminating the need for central processing equipment and enabling distributed peer-to-peer call processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If central processing equipment is used for call transfer functionality, then call processing can be performed, but system scalability is limited and costs increase with system growth
Solution Approach 1:
The patent divides the centralized call processing function into distributed segments at individual network devices. Each network device receives call transfer functionality as an independent module that can operate autonomously, eliminating the need for a single centralized processing equipment and enabling scalable deployment across multiple devices.
Solution Approach 2:
Network devices perform call transfer operations independently using locally embedded functionality. When a call transfer is required, the network device at the original recipient's location executes the transfer logic locally to redirect the call to the transferee, without requiring intervention from or dependency on central processing equipment.
2Ease of operation
If central processing equipment is used for call transfer, then call control is centralized, but equipment costs and upgrade requirements increase
Solution Approach 1:
The patent extracts the call transfer functionality from centralized processing equipment and embeds it directly into network devices. This extraction eliminates the need for expensive central processing upgrades while maintaining call control capability, as each network device independently handles transfer operations using its own embedded functionality.
Solution Approach 2:
Instead of relying on a single centralized system, the patent implements multiple copies of the call transfer functionality distributed across different network devices. Each network device contains a complete copy of the call transfer module, enabling redundant and scalable operation without requiring costly central equipment upgrades.
3Device complexity
If simple user terminal sets are used, then device complexity is reduced, but call processing capability is limited
Solution Approach 1:
The patent enables network devices to perform multiple functions including call transfer, by embedding the call transfer module within them. This transforms simple terminal sets into multi-functional devices that can both receive calls and independently execute call transfer operations, expanding their versatility without significantly increasing complexity.
Data Source
AI summary
In a call transfer of a call there is an original calling network device, an original recipient of the call, and a transferee of the call. Systems, network devices, and methods are provided for delivering local call transfer functionality. Each network device is capable of functioning in the capacity of any one or more of the above three roles, namely, originator, original recipient, and transferee by providing local call transfer functionality. There is no requirement for central processing equipment used to provide local call transfer functionality for transferring calls.