Gigaset DX800A all in one hybrid phone Communication via VoIP and fixed line an all in one solution Choose how to make a call internet VoIP up to 6 SIP accounts analogue 1 PSTN connection Large 3.5 TFT color display 3.5 inch 6 programmable keys Expandable to a cordless PBX Current Gigaet S/SL class, C610H is recommended Internal calls in full HDSP quality 4 External calls possible simultaneously WEB interface/ online features PC connection via ethernet and Gigaset QuickSync Synchronize directory with Outlook CTI support dial from Outlook, talk via base Operating systems Windows XP, Vista, Windows 7, MacOS X 10.4.9 and higher Search in directory and yellow pages Reverse search via telephone number Automatic caller search with name, number and address display 2 Simultaneous Bluetooth connections, i.e. via headset and mobile phone Link2mobile Register up to 5 mobile phones Accept and make calls for mobile phone 3 answering machines up to 55 minutes recording time, operates via base station and handset DECT 6.0 interference free communicationSupports email notification and info services RSS feeds, various news topics, weather forecast, etc ECO DECT with different energy saving features night mode, switchoff DECT Compatible Gigaset cordless handsets include C610 and S820