This product is either discontinued or we cannot get that from suppliers.
Grandstream GXP1630, VoIP phone, 4-way, Call Forwarding, Caller ID, Call Hold, Call Transfer, Call Waiting, LCD display, Display 132 x 64 pixels, Monochrome, Port 2 x Ethernet 10Base-T/100Base-TX/1000Base-T, Connections Headset jack / RJ-9, Table-top, Wall-mountable, Black.
The GXP1630 comes equipped with a suite of VoIP features that are deployed in a clear and easy-to-use fashion. Focused primarily for low to medium call volumes and efficient call handling, its 3 line/SIP account design.