Interfaces
Voice Ports : 4 Ports
Telephone Interfaces : FXS, RJ11
Lifeline : Automatic cut through of a single analog line
Network Interface : 10/100 BASE-TX, RJ45
Indicators : Channel status and activity LEDs
Voice, Fax, Modem
Voice over Packet Capabilities : G.168-2004 compliant Echo Cancellation, VAD, CNG, Dynamic programmable Jitter Buffer, modem detection and auto-switch to PCM
Voice Compression : G.711, G.723.1, G.726, G.729A
Fax over IP : T.38 compliant, Group 3 fax relay up to 14.4 kbps with automatic switching to PCM or ADPCM
QoS : Diffserve, TOS, 802.1 P/Q VLAN tagging
IP Transport : RTP/RTCP per IETF RFC 3550 and 3551 PPPoE, ThruPacketTM (aggregated RTP streams of several channels for saving network bandwidth)
Physical
Power : 100-240 V AC/50-60 Hz or -48V DC
