The latest of it's range, with self-labling keys. Click on the links belows for more information:- optiPoint 420 Economy at a Glance Unit Price: US$230.00 optiPoint 420 Economy Plus at a Glance Unit Price:US$325.00 optiPoint 420 Standard at a Glance Unit Price:US$395.00 optiPoint 420 Advance at a Glance Unit Price:US$475.00 Note: All Siemens optiPoint 420 models support IEEE 802.3af POE standard as well as Cisco's proprietary power over Ethernet protocol. In Stand-alone mode, a seperate Mains Adapter is required Price: Quote # Siemens optiPoint 420 IP Phone Family 西門子 互聯網數碼電話
