1. Software feature list Call history: Dialed call, Missed call, Received call, Call duration Call features: Call hold, Call mute, Call waiting, Call transfer, Call forward,, In-band / Out-of-band DTMF (RFC2833) / SIP INFO Language: English Hand... - Update: 2012-02-14

SC-6025S IAX2 IP Phone with 1WAN, 1LAN, 2SIP accounts, 3 way conference call, full duplex hand-free speaker phone, support SMS - Update: 2012-02-01

2 SIP servers simultaneously; Full duplex hands-free speakerphone - Update: 2012-01-04