SIP Indicator Validation for Wireless Call Authentication
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Solution Overview
Problem
Current methods for validating call origination within a wireless communication network are inadequate, as they do not effectively verify calls originating from devices with a subscriber identity module (SIM) or distinguish between legitimate and fraudulent calls, leading to increased customer service time and business expenses due to fraudster activities like caller ID spoofing.
Innovation Solution
A system and method that utilize indicators in Session Initiation Protocol (SIP) messages to validate incoming calls, classify them based on SIM registration, and suppress one-time pin (OTP) prompts for authenticated calls, thereby reducing unnecessary authentication steps and enhancing security.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If OTP authentication is implemented to verify customer identity, then security against fraud is improved, but customer service time and operational complexity increase
Solution Approach 1:
The system performs preliminary validation of call origination by analyzing SIP message indicators before the customer reaches the authentication stage. Calls are pre-classified as validated, unknown, or PSTN-originated, allowing the system to prepare appropriate authentication workflows in advance. This eliminates the need for all customers to undergo OTP verification, as validated calls can proceed directly to service.
Solution Approach 2:
The system automatically validates call origination and classifies calls without requiring customer intervention. The SIP message analysis and call classification are performed autonomously by the network system, freeing customers from manual authentication steps for validated calls while maintaining security through automated decision-making.
2Reliability
If multifactor authentication steps are added to verify customer identity, then fraud prevention is improved, but business expenses and operational complexity increase
Solution Approach 1:
The system performs preliminary validation of call origination by analyzing SIP message indicators before the customer reaches the authentication stage. Calls are pre-classified as validated, unknown, or PSTN-originated, allowing the system to prepare appropriate authentication workflows in advance. This eliminates the need for all customers to undergo OTP verification, as validated calls can proceed directly to service.
Solution Approach 2:
The system automatically validates call origination and classifies calls without requiring customer intervention. The SIP message analysis and call classification are performed autonomously by the network system, freeing customers from manual authentication steps for validated calls while maintaining security through automated decision-making.
3Reliability
If STIR/SHAKEN technology is used to verify call origination, then caller ID spoofing is reduced, but it cannot verify SIM-registered devices or identify forwarded calls
Solution Approach 1:
The system merges STIR/SHAKEN call verification with SIM registration status checking and call forwarding detection into a unified validation framework. By combining multiple verification indicators including STIR/SHAKEN certification, SIM presence, and forwarding history analysis, the system achieves comprehensive call validation that addresses the limitations of STIR/SHAKEN alone.
Solution Approach 2:
The system uses a composite validation approach that combines multiple verification indicators (STIR/SHAKEN certification, SIM registration status, call forwarding detection) into a unified call classification system. This composite validation method produces a more robust and versatile verification capability than any single indicator alone.
Data Source
AI summary
A computer-implemented method for validating the origination of an incoming customer call on a wireless communication network may include receiving a SIP invite message at the wireless communication network when the call is initiated, determining whether the SIP invite message includes one or more indicators indicating that the call originated within the wireless communication network from a device with a SIM registered in the wireless communication network, and writing a classification code to a database indicating that the call is validated if the SIP invite message includes the one or more indicators. The method may further include receiving the call at an agent computer device with caller identification information, querying the database via the agent computer device according to the caller identification information to obtain the classification code of the customer call, and suppressing a step used for call authentication if the classification code indicates that the call is validated.