Telecommunication Call Routing for Urgent Access
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Solution Overview
Problem
Current mobile communication systems fail to intelligently distinguish between urgent and non-urgent calls and messages, leading to distraction and potential safety issues, as they often silence or forward all calls and messages, potentially missing important ones or disturbing the user with non-urgent notifications.
Innovation Solution
The system employs a state evaluation circuit to determine whether a subscriber is in an access-denied or access-allowed state, storing or forwarding messages accordingly, allowing the calling party to decide based on urgency and importance, and notifying the called party only when out of silence-desired areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the mobile terminal is silenced or calls are forwarded to avoid disturbance, then non-urgent calls are blocked, but urgent calls may be missed
Solution Approach 1:
The system performs preliminary classification of incoming calls into urgent and non-urgent categories before the user needs to respond. The network device evaluates call characteristics (such as caller identity, time of day, day of week) in advance and applies different routing rules: non-urgent calls are silenced or forwarded, while urgent calls are allowed through to the user's device.
Solution Approach 2:
A network device acts as an intermediary between the calling party and the mobile terminal. This intermediary evaluates incoming calls and makes intelligent routing decisions, filtering out non-urgent calls before they reach the user while ensuring urgent calls are delivered. The network device mediates the conflict between avoiding disturbance and receiving important calls.
2Reliability
If all calls are allowed to reach the user, then urgent calls are received, but the user is disturbed by non-urgent notifications
Solution Approach 1:
The system performs preliminary classification of incoming calls into urgent and non-urgent categories before the user needs to respond. The network device evaluates call characteristics (such as caller identity, time of day, day of week) in advance and applies different routing rules: non-urgent calls are silenced or forwarded, while urgent calls are allowed through to the user's device.
Solution Approach 2:
The system segments the call handling process into different paths based on call urgency. Urgent calls follow one path (delivered to user), while non-urgent calls follow another path (silenced or forwarded). This segmentation allows the system to simultaneously achieve reliable urgent call reception and minimize disturbance from non-urgent calls.
3Object-affected harmful factors
If call rejection based on Caller ID is used, then non-urgent calls are blocked, but emergency calls may be rejected if the number is believed to be unimportant
Solution Approach 1:
The network device performs preliminary evaluation of incoming calls using multiple criteria beyond just Caller ID, such as time of day, day of week, and caller history. This preliminary assessment prevents premature rejection of potentially urgent calls while still filtering out non-urgent ones.
Solution Approach 2:
The system changes the parameters used for call evaluation from simple Caller ID matching to a multi-parameter assessment including time of day, day of week, and caller importance indicators. This parameter expansion allows more nuanced differentiation between urgent and non-urgent calls, reducing false rejections of emergency calls.
Data Source
AI summary
A telecommunication system and method for notifying a calling party, via a Preventive Disturbance Announcement (PDA), that a called party is in an area where the called party would prefer not to be disturbed with non-urgent calls. The calling party is then given the opportunity to either talk to the mobile called party or to leave a message or callback number. If the calling party decides to try to talk to the user, a Home Location Register (HLR) directs the call to a Visitor Location Register (VLR), and a mobile ending call is generated via a Mobile Switching Center (MSC). For non-urgent calls, the called party is given an option to refuse a voice mail page or Caller ID page of the non-urgent calls. The HLR will direct the Short Message Service (SMS) Service Center (SMS/SC) to store, in a buffer or external source, the Caller ID of non-urgent calls that were not connected to the called party while the PDA was active.