FXS Gateway IAD 100-4S

FXS port: 
4 RJ11
Console 
1*RJ45 115200bps
USB 
1*USB2.0, fullspeedOperation Mode 
Gateway, Routing, BridgeBasic Function 
Static IP, DHCP Client, PPPoE
WAN Multi-subinterface
DHCP Server, NAT, DNS, IGMP, VLAN
Static Route, Dynamic Route, Policy Route
PPTP, L2TP, IPSec, SSL, VPN
Switch VLAN, Trunk Port
Support NTP Client
Bandwidth Control, QoS Policy
Security Firewall, APR Defense, DDoS Defense
Open VPN
IPV4 / IPV6Speech codec: 
G.711 PCMU G.711 PCMA G.729, G.729aVoice Quality Assurance 
Echo Cancellation
Mute Detection
Mute Compression
Comfort Noise Generator
Jitter Buffer
Voice Packet Loss Compensation
Gain AdjustmentLog Function 
Support Log Information Checking
Remote Syslog
Log Type Level SettingLocal Management 
Local HTTP Web Management
Remote HTTP Web Management
ssh2 Console
Configuration Backup & Recover
Factory Default Reset
Software Upgrade
System Reboot
Debug Tool
Gateway Status MonitorRemote Management 
Remote Update SNMP / TR069 / SYSLOG