VoIP analogový telefonní adaptér + integrovaný router. Konektory: 1 x LAN RJ-45, 1 x WAN RJ-45, 1 x FXS RJ-11, 1 x PSTN RJ-11. Podporované protokoly: SIP 2.0, TCP/UDP/IP, RTP/RTCP, HTTP, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP.Built-in router, NAT and Gateway. Powerful digital signal processing (DSP) to ensure superb audio quality; advanced adaptive jitter control and packet loss concealment technology. Ultra compact (wallet size) and lightweight design, great companion for travelers. Support various vocoders including G.711 A-/U-law C G.723.1, G.729A/B, G.728, G.726, iLBC. Fax pass through and T.38 (pending). Support silence suppression and VAD C AGC C and echo cancellation (G.168). Support standard encryption and authentication (DIGEST using MD5 and MD5-sess). Support layer-2 (802.1Q VLAN, 802.1p) and layer-3 (DiffServ, ToS) QoS. Support automated NAT traversal without manual manipulation of firewall/NAT. Support remote automated provisioning and software upgrade even through firewall/NAT to enable “zero configuration” and “plug-and-dial” for end users. Support device configuration via built-in IVR, Web browser or central configuration file. Support DNS SRV Look Up. SIP Server Fail Over (pending).