Lookit color lcd display sip wi-fi mobole phone   Very low consumption with breast pocket design     820.11b/g,IEEE802.1x,802.11i MD5AUTH WEP(64.128encryption)WPA/WPA2/MD5 auth direct Ip calling without sip registration up to 4 sip profile possibel dail registered number via sip server dail URL from phone book and speed dail Three-way calling/call waitingl call reject redail mute caller id anonymous call miss call indicator 5 way navigation paddley keyboard backlighting viberator switch keylock hands free volume control phonebook call log codec:G7.11,G 729A /B comfort noise generation voice active detection acoustic echo cancellation net search Ap auto scan TETPprovision STUN STUN support charging via usb in pcor adapter possible very low power,long standy /talk time light and small(breast pocket design)