Analog ports：2 FXS ports Protocal: SIP and IAX2 Fax over IP: T.38 Codec:G.711 G.722 G.726 G.729A, GSM, ADPCM, Speex.

Analog ports：2 FXS ports Protocal: SIP and IAX2 Fax over IP: T.38 Codec:G.711 G.722 G.726 G.729A, GSM, ADPCM, Speex.

Analog ports：2 FXS ports Protocal: SIP and IAX2 Fax over IP: T.38 Codec:G.711 G.722 G.726 G.729A, GSM, ADPCM, Speex. Cancelación de Eco ITU-T G.168, Jitter Buffer Dinámico, VAD, CNG, PLC, T.38 fax. Configuración basada en Web, Registros del Sistema, TR-069*, SNMP*