If you tell me the exact model number and what you want to achieve (e.g., unlock, upgrade firmware), I can help you find the right tool or the exact AT command you need.
The Ultimate Guide to Huawei Modem Terminals: Downloads, Setup, and Optimization
Professional-grade terminal emulators used to send manual AT commands.
Manage text messages directly from your modem. 2. Best Huawei Modem Terminal Software: Top Picks
Once you have connected via a terminal like PuTTY or DC-Unlocker, you can use these commands to query your modem: ATI Displays manufacturer and model information AT^CGMR Checks the current firmware version AT^CGSN Retrieves the modem's IMEI AT^CSQ Checks the current signal strength AT^U2DIAG=256
Found on SourceForge, this collection includes various tools tailored for Huawei ONT/modem configuration and flashing.
The "Best" download is the official Huawei HiLink software for management. For unlocking and terminal flashing, dc-unlocker is the superior tool due to its reliability and extensive model database.