A disposable SMS phone number is automatically assigned when the app starts. 2. Give the sender the disposable phone number. 3. You can receive the sent SMS messages while the app is running. 4. A different phone number will be assigned each time you launch the app. [Terms & Conditions] https://www.hayaya.net/terms-conditions/temporary-sms.html [Privacy Policy] https://www.hayaya.net/privacy-policy/temporary-sms.html