1-port ATA (with 1 FXO and 1 FXS)
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Supports SIP 2.0(RFC 3261) , TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP/RARP, DNS, DHCP (both client and server) , NTP, PPPoE, STUN, TFTP, etc.
Built-in router, NAT, HTway and DMZ port forwarding
Supports call origination and termination from/to the PSTN network
Supports PSTN call and VoIP call through FXO
Powerful digital signal processing (DSP) to ensure superb audio quality; advanced adaptive jitter control and packet loss concealment technology
Support various vocoders including G.711 (a-law and u-law) , G.723.1 (5.3K/6.3K) , G.726 (40K/32K/24K/16K) , as well as G.728, G.729A/B, and iLBC.
Support Caller ID/Name display or block, Hold, Call Waiting/Flash, Call Transfer, Call Forward, in-band and out-of-band DTMF, Dial Plans, etc.
Support fax pass through and T.38
Support Silence Suppression, VAD (Voice Activity Detection) , CNG (Comfort Noise Generation) , Line Echo Cancellation (G.168) , and AGC (Automatic Gain Control)
Support standard encryption and authentication (DIGEST using MD5 and MD5-sess)
Support for Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)
Support automated NAT traversal without manual manipulation of firewall/NAT
Support device configuration via built-in IVR, Web browser or central configuration file through TFTP or HTTP
Support firmware upgrade via TFTP or HTTP with encrypted configuration files.
Ultra compact (wallet size) and lightweight design, great companion for travelers.