Electronic Device Spam Call Detection Using Shared Call Logs
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Solution Overview
Problem
Existing communication systems are vulnerable to spam calls and messages due to the misuse of call and message continuity functions across multiple devices connected under a single user account, which can facilitate malicious activities, leading to user inconvenience and experience degradation.
Innovation Solution
A server-based system that utilizes call log information from connected devices to detect and identify spam callers by analyzing outgoing calls and nearby device logs, determining whether devices satisfy conditions indicative of spamming behavior.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If call and message continuity function is provided across multiple devices under the same user account, then user convenience and device connectivity are improved, but vulnerability to spam calls and malicious activities increases
Solution Approach 1:
The patent segments the detection task by device type and location. It distinguishes between primary devices (with SIM cards) and secondary devices (without SIM cards), and further categorizes secondary devices by their operational status (registered vs. unregistered). This segmentation allows the system to apply different detection rules and blocking strategies to different device categories, thereby preventing spam calls while preserving legitimate user convenience across the continuity function.
Solution Approach 2:
The patent introduces a server as an intermediary between the communication network and the user devices. The server receives call log information from multiple devices, analyzes the data to identify spam calling patterns, and then sends blocking instructions back to the network. This intermediary approach enables centralized spam detection and blocking without directly interfering with the continuity function's operation on individual devices, thus maintaining user convenience while preventing malicious activities.
2Object-affected harmful factors
If blocking is applied to secondary devices in designated countries to prevent spam calls, then spam calling is reduced, but user experience and convenience are degraded
Solution Approach 1:
The patent applies local quality by treating different device categories differently. Instead of uniformly blocking all secondary devices, it selectively blocks only unregistered secondary devices based on their location and operational status. Registered secondary devices and primary devices maintain normal functionality. This differentiated approach prevents spam calling from unregistered devices while preserving user experience for legitimate users with registered devices.
Solution Approach 2:
The patent implements preliminary action by detecting and blocking unregistered secondary devices before they can be used for spam calling. The system proactively identifies devices that should not have continuity function access (unregistered devices) and blocks them in advance. This prevents malicious activities without affecting registered devices that have legitimate user experience requirements, thus resolving the contradiction between spam prevention and user convenience.
3Measurement precision
If call log information from multiple devices is analyzed to detect spam callers, then detection accuracy is improved, but system complexity increases
Solution Approach 1:
The patent merges the detection capability into an existing server infrastructure that already collects and stores call log information from multiple devices. Rather than requiring each device to perform complex analysis independently, the system combines data from all devices at the server level where it already has the computational resources and storage capacity. This merging approach improves detection accuracy through comprehensive data analysis while avoiding the complexity of implementing sophisticated detection algorithms on individual devices.
Solution Approach 2:
The patent enables the existing server system to perform spam detection as a self-service function. The server already collects call log information for continuity management, so it utilizes this existing data and infrastructure to also perform spam detection and blocking. This self-service approach allows the system to improve detection accuracy without adding separate complex detection systems, as the same server resources handle both continuity management and spam prevention tasks.
Data Source
AI summary
A server may include a communication circuit and at least one processor. The at least one processor may be connected to a first electronic device and a second electronic device, using the communication circuit, and may be configured to: obtain first call log information including at least one outgoing call made using a call function of the first electronic device by the second electronic device, determine whether the second electronic device satisfies a first condition for determining that the second electronic device is a spam caller, based on the first call log information, search for one or more external electronic devices located around the second electronic device, based on the first condition being satisfied, obtain second call log information about the one or more external electronic devices, and determine at least one of the one or more external electronic devices or the second electronic device as a spam caller, based on the second call log information.