Automating SIM Data Resets with USSD > 자유게시판

Triggering data resets on SIMs through USSD protocols can be a effective way to optimize data allowances without requiring physical access to the device. Unstructured Supplementary Service Data is a real-time protocol used by GSM networks to exchange brief commands. Unlike web portals, USSD functions over voice channels, making it perfect for remote areas.

Most network providers offer predefined sequences to replenish data buckets. These codes commonly follow patterns like 123or 555#. Implementing scheduled resets involves setting up a solution that executes commands based on thresholds, such as on a recurring schedule.

A practical solution is to use a 2G connected to a embedded system like a Raspberry Pi. The modem can be programmed through serial interfaces over a RS-232 interface. By writing a simple Python script, you can send the USSD code to the modem. For example, sending AT+CUSD=1,"123#",15 will start the carrier interaction. The modem will then send back a confirmation message, which can be parsed with regex to verify the reset succeeded.

Setting up task automation enables complete automation. For instance, a user might schedule a reset every Monday at 2 a.m. to bypass congestion. The system can also check current usage via another USSD code and skip reset if under limit, ensuring efficient plan usage.

Key consideration that certain providers block data resets via USSD. Alternative methods include using a mobile app. Always verify with your carrier that the USSD code you intend to use is recognized by the network. Also, excessive automation may violate your service terms, so understand provider policies before deployment.

Preventing breaches matters. If the automation controller has internet access, ensure it is hardened against attacks. Never save credentials on the device. The Raspberry Pi should have minimal internet exposure to prevent unauthorized access.

This method is especially valuable businesses managing large-scale remote sensors, industrial telemetry units, or any scenario requiring predictable usage patterns. It also benefits users with limited plans to extend plan longevity without daily checks.

This solution reduces workload, it is should complement understanding your plan. Regularly review your bills to detect anomalies. Validate on a prototype before rolling out broadly.

In summary, controlling mobile data via automated USSD is a practical solution for anyone needing to maintain consistent connectivity. With the right hardware, a reliable program, hackmd.io and approved protocols, it can become a reliable method to keep connectivity active without overspending.