Grandstream GRP2604

The GRP2604 is built for desks with real call volume on an essential budget. Like the GRP2603 it supports six SIP accounts, three line keys, dual gigabit ports, and five-way conferencing, but it adds programmable virtual multi-purpose keys for speed dials and busy-lamp monitoring, so an admin can see and reach frequent contacts in one press. The backlit 132x64 display keeps status readable through a full shift.

It suits dispatch desks, clinic checkouts, and small front offices that need workhorse features more than color screens. Grandstream designed this series for mass deployment with zero-touch provisioning, and fvoip completes the picture: every unit ships registered to your account with keys mapped, and moves or relabels take effect from the portal in minutes. The base model powers by adapter; the GRP2604P variant adds integrated PoE.