Siemens optiPoint 420 Advance multi-line IP speaker phone Siemens optiPoint 420 Advance multi-line IP speaker phone
Modular, multi-line IP speaker phone with self-labelling key functionality.

4 line, backlit LCD display

10/100 base T network interface

18 function keys with LEDs

optiGuide dialog keys

Fully duplex speakerphone

Headset port

Integrated USB port

optiPoint adaptor/module

G.711, G.723 & G.729

PoE on unused / used pairs

Supports SIP and CorNet IP