# Verify Silent Network Auth Headspin Testing Guide

In order to test Verify Silent Network Auth (SNA), the mobile number used must be on one of our supported carriers within a supported country. If you do not have access to a supported mobile number, you can use a third-party mobile device testing service like [Headspin](https://www.headspin.io/) to obtain one and proceed with testing.

## Requirements

* A [Headspin](https://www.headspin.io/) account. To create one, request a free trial and a Headspin rep will contact you to set it up within 1-2 days.
* A mobile app to install. If you'd like to use our SDK sample apps, [request access](https://interactive.twilio.com/silent-network-auth-sales-1?_ga=2.254294792.1830556962.1666025043-1879743973.1650468405) to our iOS/Android SNA SDK repositories.
  * iOS: [https://github.com/twilio/twilio-verify-sna-ios](https://github.com/twilio/twilio-verify-sna-ios)
  * Android: [https://github.com/twilio/twilio-verify-sna-android](https://github.com/twilio/twilio-verify-sna-android)
* An IPA/APK generated from your app or the sample app.
  * [ReadMe instructions for running the sample app](https://github.com/twilio/twilio-verify-sna-ios#SampleApp)

## Considerations

* Uninstall the app from the Headspin device once you finish testing to prevent leaks of your product. Headspin devices are available to all their customers.
* It may be difficult to debug the app should issues occur, you may want to plan a logging strategy to track user interactions during Headspin testing.

## Getting started

**Step 1:** Open [Headspin](https://ui.headspin.io/) on your browser.

**Step 2:** Click on the **Create a Session** and then **Start Remote Control** buttons.

**Step 3:** In the **Devices** list, select a device on a supported region. Supported regions currently include:

* United States (US)
* Canada (CA)
* United Kingdom (UK)

**Step 4:** Select a device by clicking the **Start** button with an available phone number and supported carrier. Supported carriers currently include:

* US: Verizon and T-Mobile
* CA: Bell, Rogers, and Telus
* UK: EE, Vodafone, O2, and ThreeUK

**Step 5:** Once the device is up and running, select the **Apps** button.

**Step 6:** Select the **Upload App +** button.

**Step 7:** Select the IPA/APK (IPA for iOS, APK for Android) and wait until Headspin uploads and installs the app on the device.

**Step 8:** Once the app is installed, you can interact with the app and test it against a real world scenario. Follow our [Silent Network Auth Testing Guide](/docs/verify/sna-testing-guide) for more detailed testing instructions!