| Mobile phone test terminal | An SMS monitoring client NBSMS is installed on the terminal member's mobile phone, which is used to request SMS monitoring tasks and upload test data to the Tingyun report Server. | Tingyun will give corresponding rewards based on the number of tasks received by members' mobile phones. |
| Tingyun scheduling server | According to the configured task situation, the mobile phone numbers of various regions and operators across the country are dispatched to perform tasks. | |
| Tingyun relay server | For the security of the SMS gateway, Tingyun uses a fixed IP server to apply for SMS messages from the SMS gateway. (Because if a mobile phone frequently requests text messages from the SMS gateway, it may be identified as a malicious attack) | Generally, customers can add the fixed IP to the whitelist of the customer's SMS gateway server. |
| SMS servers from various manufacturers | Send a text message to the test phone. | |