: Equipped with 1 Gigabit Ethernet (GE) port for high-speed wired connection, 3 Fast Ethernet (FE) ports, 1 POTS (voice) port, and 1 USB port.

your current configuration ( .cfg file) before proceeding.

: Remote management support via Web, TELNET, and TR-069 protocols.

serves as an ultra-broadband gateway for home and small business users, featuring:

After the firmware upgrades and the ONT reboots:

Downloading random firmware files from forums to "unlock" your GM220S is highly risky.