1. Introduction In the context of Global System for Mobile Communications (GSM), the phrase "GSM hosting files" does not refer to a standard, single specification. Instead, it describes the practice of using GSM infrastructure or GSM-connected devices to host, serve, or transfer files over circuits or data channels.
Unlike modern LTE/5G (which is IP-native), GSM was originally designed for voice and SMS. However, through extensions like GPRS (General Packet Radio Service), CSD (Circuit-Switched Data), and USSD, GSM networks can be leveraged to host or transmit files — often in constrained, legacy, or niche environments (e.g., IoT, industrial telemetry, or vintage computing). | Feature | Description | Role in File Hosting | |--------|-------------|----------------------| | CSD | Circuit-switched data at 9.6/14.4 kbps | Direct dial-up connection to a remote server (like an old BBS). | | GPRS | Packet-switched data (the first "always-on" GSM data) | Allows TCP/IP, HTTP, FTP, etc. — used to host lightweight web or file servers. | | SMS | 160-byte text messages | Can carry small files (e.g., configs, logs) encoded as base64 or hex. | | USSD | Session-based, real-time | Not ideal for files but can host structured menu data. |