Product Description
`- 8 VoIP Users- 8 Concurrent Calls- 4 VoIP Trunks- 8 Fixed RJ11 FXS Ports- 4 Customizable FXS RJ11 Ports- Up to 4 Customizable FXO/BRI RJ11 Ports- Up to 2 Customizable GSM/3G/4G Channels- 1 10/100Mbps LAN- 1 10/100Mbps WAN- TF Card Slot- Protocol: SIP IAX2- Transport Protocol: UDP TCP TLS SRTP- DTMF: In-band RFC4733 SIP INFO- Codec: G711 (alaw/ulaw) G722 G726 G729A GSM Speex ADPCM iLBC H263 H263P H264 MPEG4