- Google Voice built-in (placing and receiving GV calls).
- iLBC codec (best for VOIP over 3G).
- WiFi ready (optional WiFi module sold separately).
- Support T.38 for reliable fax (good for connecting to it a fax machine).
- Unlocked and versatile (use with any VOIP provider such as VoipDiscount).
- Callback (for lower rate).