
Compatible with Windows 98/Me/2000/XP/2003

Supports work behind NAT/Firewall (STUN is used)

G.711, GSM, iLBC, G.726 (G.721) and G.729 codecs

Adaptive Echo Canceller (AEC)

Automatic adjustable Jitter buffer

DTMF tones (can be integrated with voice mail or other tone driven system)

Registers with SIP Registrar

Supports SIP Outbound Proxy

Redial of last number

History of 10 latest dialed numbers

Quick dial users list