... .Large port access gateway Standard SIP protocols Standard G.723.1,G.729A/B,PCM A/U code Call forwarding, ... 0/2.0.Main featuresSupport Call forwarding, Call waiting, Call display etc standard voice service and Busy tone, Fax over IP, ... mainstream softswitch providers. InterfacesTelephone interfaces8* RJ45 FXS PortsNetwork interface2/4*10M/100MBPS auto-sensing RJ45 PortsLED indicatorsPower, Run, Network ...