Siemens optiPoint 420

optiPoint 420 advance VoIP system telephone arctic Additional Information
- Backlit, graphical LCD display with 4 lines of 24 characters
- Swiveled
- 18 function keys with display and LEDs
- 3 dialog keys for interactive user guide
- 2 keys (plus, minus) for Ringing and Rufklangfarbe
- Full duplex speakerphone
- 1 adapter slot
- 1 USB master port
- Support for the optiPoint application module
- 10/100 Mbps mini-switch
- 1 interface for max. 2 add
- 1 headsets port (121TR9-5/Polaris)
- CTI
- PoE IEEE 802.3af
- Suitable for wall mounting