- Single FXS telephone port (supporting 5 REN) single 10/100M Ethernet port - LEDs for power, internet, LINK/ACT, and phone status - Strong security protection of voice/data privacy using TLS/ SRTP/ HTTPS, secure and automated provisioning using TR069 and HTTP/HTTPS/TFTP - Advanced telephony features including caller ID, call waiting, 3 way conference, transfer, forward, do not disturb, message waiting indication, multi-language voice prompt, T.38 fax, flexible dial plan - Support comprehensive voice codecs including G.711 with annex 1I/II, G.723.1, G.729A/B, G.726, iLBC GSHT701