The Snom D735 comes with a timeless design and cutting-edge technology inside. 12 SIP identities, 32 self-labelling function keys (8 physical keys) 2x Gigabit LAN port, 1x USB 2.0 port, PoE support (Power over Ethernet, IEEE 802.3af, class 2) Supports EHS (Electronic Hook Switch, optional accessories required)