Specifications
Ports and Connectivity:
- 16 × FXS ports (RJ11)
- 1 × 10/100 Mbps Ethernet LAN port
- 2 × RJ21 (Telco connectors for analog lines)
VoIP Protocols:
- SIP (RFC3261), IAX2
Voice Codecs:
- G.711 A-law and µ-law, G.722, G.723, G.726, G.729A/B, GSM, ADPCM, Speex
Fax Support:
- T.38 Fax and G.711 Pass-through
Echo Cancellation:
- ITU-T G.168 with configurable echo tail up to 128 ms
DTMF Support:
- In-band
- RFC2833
- SIP INFO





