Missed Call Notification via Intermediary Server for Insolvent Calls
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Solution Overview
Problem
Current methods for notifying a called subscriber of a calling attempt from a party with an invalid credit account are inconvenient and unreliable, often resulting in unintended payment burdens on the called subscriber due to technical failures or network limitations.
Innovation Solution
A method where the calling subscriber's call is routed through a forwarding and controlling server that processes the call information, forming an information call with the complete phone number of the calling subscriber, which is instantly disconnected upon confirmation of insolvency, ensuring the called subscriber is notified without establishing a connection, thus avoiding payment for unpaid calls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the calling subscriber's call is routed directly to the called subscriber's phone, then the called subscriber receives notification of the missed call, but the calling subscriber may establish an unintended connection and incur payment for unpaid calls
Solution Approach 1:
A forwarding and controlling server is introduced as an intermediary between the calling subscriber and the called subscriber. The server receives the outgoing call, processes it to extract calling subscriber information, forms an information call, and instantly disconnects the original call before it reaches the called subscriber's phone. This intermediary prevents unintended connections while ensuring reliable notification.
2Ease of operation
If a pre-determined digit sequence is used to initiate call transfer, then the calling subscriber can request call transfer, but the method becomes inconvenient and unusable in emergency situations
Solution Approach 1:
The system automatically detects when the calling subscriber does not have a valid credit account and initiates the information call process without requiring any special input from the user. The calling subscriber simply dials the called subscriber's number normally, and the system handles the rest automatically, making the service as easy to use as regular calling.
3Reliability
If the outgoing call is disconnected after one ring, then the calling subscriber is notified of insolvency, but the called subscriber may not receive sufficient notification of the missed call
Solution Approach 1:
The forwarding and controlling server performs preliminary processing of the outgoing call before it reaches the called subscriber's phone. It extracts the calling subscriber's information, forms an information call with this data, and prepares the notification content in advance. When the call is instantly disconnected, the called subscriber receives a complete notification about the missed call from an insolvent caller.
4Loss of information
If the information call is not instantly disconnected, then the called subscriber receives complete notification, but the calling subscriber may establish connection and avoid payment
Solution Approach 1:
The forwarding and controlling server rushes through the process of extracting calling subscriber information and forming the information call in advance, so that when the original outgoing call reaches the called subscriber's phone, it can be instantly disconnected without delay. This ensures the notification is complete while preventing any possibility of connection establishment.
Data Source
AI summary
The invention relates to telephone communication, in particular to methods for notification of the called subscriber in the communication networks, namely in the absence of the calling party's valid credit account, and can be used in existing mobile telecommunications systems, including GSM, 3 GSM, 3G, CDMA, WCDMA, and others. In the method each subscriber of the network is provided with an opportunity to get network access for outgoing calls, regardless of the status of his/her account, and to accept the call and/or receive the calling subscriber's messages without the pre-paid credit account. The calling subscriber dials the phone number of the called subscriber; the operator of the calling subscriber determines his solvency; upon initiation of a call by the calling subscriber, who does not have a valid credit account, for its transmission to the called subscriber the outgoing call is directed through the operator serving the calling subscriber to a forwarding and controlling server and at its command disconnects the calling subscriber. The forwarding and controlling server processes the obtained information and forms a transit call, by the transit call through the operator serving the calling subscriber is transferred an outgoing call to the operator's network serving the called subscriber as an information call, notifying of the missed call. A notification about the missed call is created for the called subscriber, providing information about the calling subscriber, and the information call is disconnected after its receipt by the called subscriber. The result, obtained by means of the claimed method, consists in increasing the reliability and ease of communication between subscribers in an irregular situation, namely upon insolvency of the calling subscriber.