At first glance, you will mistake this phone for the usual mobile phones we see in the world today. Its shape is quite deceiving but the great part of it is the features of VoIP, an obvious clamor in the world of business and personal use today.

For every day use it’s still better to use a standard phone set connected to VoIP via an ATA adapter. They are simply more mature, with better power performance. Some even have free WLAN access so that you can stay in touch with anyone that you need to monitor or stay in contact with.

(Source) VoIP User