1 FXS telephone port (RJ11), 1 FXO PSTN line port (RJ11) with power-outage life line support,
Up to 3 SIP account profiles,
Dual 10/100 Mbps network ports (RJ45) with integrated high performance NAT router,
Status LED for power, telephone, PSTN line, and network indication,
Advanced telephony features
caller ID from both IP and PSTN,
call waiting, 3-way conference with IP and/or PSTN,
remote call origination and termination from/to PSTN,
hop-on and hop-off calling,
transfer to OR forward to IP or PSTN,
do not disturb,
message waiting indication,
multi-language voice prompts,
flexible dial plan, direct IP calling
Comprehensive voice codecs
Secure and automated provisioning using HTTP/HTTPS/Telnet/TFTP
Symmetric and asymmetric voice codec/RTP in any call sessions
T.38 Fax

Ethernet Ports
2 RJ45(LAN/WAN)
NAT/Router
Yes
DHCP
Client/Server
FXS Port
1
FXO Port
1
PSTN Pass-through Port
Yes
Voice Mail Indicator
Yes
Voice Codec
G.711 (a/u-law), G.723, G.729, G.729A/B, T.38 Fax
Remote Configuration
HTTP/HTTPS/Telnet/TFTP Provisioning