NV 2.1 - Testing App

Internal testing tool for GSMA Open Gateway TS.43 Number Verification APIs.

Open Gateway Sandbox is an internal testing and demonstration tool developed by Telefonica for validating Open
Gateway APIs based on the GSMA TS.43 standard.

The app enables Telefonica engineers and partners to test the following API flows end-to-end on real mobile
networks:

- Get Phone Number: Retrieves the verified phone number (MSISDN) of the device's SIM card using the TS.43
Operator Token flow.
- Verify Phone Number: Confirms whether a given phone number matches the device's SIM, using the Number
Verification API.
- SIM Swap Detection: Checks if the SIM card has been recently swapped, a key indicator for fraud prevention.

How it works:
1. The app requests an Operator Token via the OpenID4VP / Digital Credentials API.
2. The token is sent to the Open Gateway aggregator.
3. The aggregator calls the carrier's Number Verification or SIM Swap API.
4. The result is displayed with detailed latency metrics for each step.

Additional features:
- Real-time latency measurement for each API call (OpenID4VP, Operator Token, Number Verification).
- Optional AccessibilityService for precise consent-time vs token-generation-time breakdown.
- Support for both TGS (TS.43) and Direct aggregator modes.
- Success counter tracking across testing sessions.

This app is intended for internal use by Telefonica and authorized partners for testing, demonstration, and
validation of Open Gateway network APIs. It is not intended for consumer use.

Requires an active mobile data connection with a supported carrier.