Zte H3600 «REAL - ROUNDUP»
So in short: it’s a (CPE — Customer Premises Equipment).
The is a Home Gateway / Optical Network Terminal (ONT) — specifically, a GPON ONT (Gigabit Passive Optical Network Optical Network Terminal). zte h3600
It’s a piece of telecommunications equipment used by internet service providers (ISPs) to deliver fiber-optic broadband to residential customers. So in short: it’s a (CPE — Customer Premises Equipment)