4 FXS ports VoIP Gateways,

With 2 10M/100M Ethernet ports,

Built-in Router function,

Codec: G.711 u/a law, G.729, G.729 a/b, G.726

Fax Protocol: G.711 pass-through, T.38

Echo Cancel: G.168 (128ms)

IP Assignment: Static IP, DHCP, PPPoE

Voice Guarantee: VAD, CNG, AEC, AGC

QoS: ToS field

Dial Signal: Pulse dialing 10/20 pps, DTMF dialing

NAT Traversal: STUN, Proprietary tunnel-based TCSP, Fresh Open

Call Functions: Call Transfer, Call Forward, Call Hold / Retrieve, Call Waiting, Caller ID Display, Caller ID Blocking, Anonymous Call Blocking, Hook Flash

FXO Support: Includes all VoIP features as well as additional PSTN related features

Compliance FCC / CE / C-Tick / Rosh