Call Redirection via Packet Network Presence Detection
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Solution Overview
Problem
Conventional call forwarding methods are inefficient and cumbersome, especially for remote working scenarios, as they require active user input, separate trunk lines, and often fail to redirect calls effectively, leading to underutilization of communication capacity and network resources.
Innovation Solution
An apparatus and method that automatically redirect incoming calls based on a user's presence on a packet network, allowing users to log in remotely and select a secondary location for call redirection without requiring forwarding instructions at the original telephonic station, using a service control point and indexer to route calls efficiently through the packet data network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional call forwarding methods are used, then calls can be redirected to alternative locations, but the system requires active user input, separate trunk lines, and complex configuration at telephonic stations
Solution Approach 1:
The patent introduces a service control point (SCP) as an intermediary component that centralizes call redirection control. Instead of configuring call forwarding at individual telephonic stations, the SCP acts as a mediator that receives location information from the packet network and automatically routes calls to the appropriate destination, thereby reducing device complexity while maintaining adaptability
Solution Approach 2:
The patent makes the telephonic station universal by enabling it to function at multiple locations without requiring location-specific configuration. The station can be associated with different physical locations through the packet network, and the SCP automatically handles call routing for all locations, eliminating the need for separate trunk line configurations at each location
2Reliability
If circuit-switched connections are used for telephonic communication, then dedicated channels are established for each call, but communication capacity is underutilized during periods when data is not being communicated
Solution Approach 1:
The patent replaces the traditional circuit-switched mechanical connection system with a packet-switched system. Instead of establishing dedicated physical circuits for each call, the system uses packet-based communication where data is transmitted in discrete packets shared across multiple calls, thereby increasing communication capacity utilization while maintaining call reliability through the service control point's intelligent routing
3Productivity
If packet-based communication systems are used, then communication capacity is significantly increased and efficiency is improved, but call redirection functionality becomes more complex to implement
Solution Approach 1:
The service control point (SCP) serves as an intermediary that bridges the packet network and the telephonic network. It receives location information from the packet network, translates it into appropriate routing instructions, and controls call redirection to the correct telephonic station, thereby implementing call redirection functionality without adding complexity to the packet-based communication system
Solution Approach 2:
The system performs preliminary action by establishing the user's location information in the packet network before calls are placed. The SCP proactively retrieves the current location associated with the telephonic station and uses it to route incoming calls automatically, eliminating the need for real-time complex processing during call setup and reducing overall system complexity
Data Source
AI summary
Apparatus, and an associated method, for redirecting telephonic calls. Calls are directed to a user based upon the user's presence on a packet network. An indexer indexes together a forwarded call location together with dialing digits associated with a called location. When a calling party subsequently places a call to the called location, selected redirection of the call is effectuated pursuant to redirection procedures. A telephonic switch, through which the call placed by the calling party is routed, accesses the index formed by the indexer, located, for example, at a service control point. Responsive to the values contained in the index, the call is routed, to be delivered to the called party. In a work-from-home scenario, a TDM call placed to a worker's work location is redirected to a secondary location with the only effort required by the worker being his log on to the worker's corporate network.