VOIP Gateways

Product Description
Features
One RS232 port for configuration
Two standard RJ11 ports, FXS for analog
phones, FXO for PSTN
One bypass port
Line test function, improve fault diagnose
capability
One 10/100M BASE-T WAN port to connect
external data network
One 10BASE-T LAN port
Supports static/dynamic NAT translate
Supports static IP address configure
Supports PPPoE (Point to Point Protocol over
Ethernet)/DHCP (Dynamic Host Configuration
Protocol, performance IP address dynamic
distribute, enhance management convenience
and access flexibility
PPPoE/DHCP auto redial when off line
Supports on line software upgrade
Supports multi configure, Console, Web, Telnet
and SNMP
Management User's level authority, high
security
Force reset factory setting, good survival
Supports RFC2833
Jitter Buffer to clear network jitter
Supports quite tone detect/ CNG (Comfort
Noise Generation)
Supports T. 30/ T. 38 fax, fax translate
Recover loss package feature
Auto-sensing dynamic buffer technology, Max
150ms, to meet bad network environment
application
Adopt authority verify etc. network security
mode
Supports Caller detect and Caller ID
Option DTMF band internal/external
transmission technology
Option input/output gain control
Supports call wait, call transfer, call forward,
abbreviation dial, no-disturb (need operator
support such service)
Supports polarity control (need operator support such service)
Telecom grade lighten proof
Bypass feature: auto call from FXO when IP network faults
QoS: Based on IPv4 ToS and distinguish service, set different service
level according to different package to ensure voice package's high
priority
Protocoll
Control Protocol: H. 323/MGCP/SIP, supports on line upgrade and
modify among such three protocols
Voice Codecs: G. 711 (A-law and u-law), G. 723. 1, G. 729,
supports voice compress arithmetic dynamic
switch
Analog voice interface: DTMF detect
Echo cancellation: G. 165/G. 168
Ethernet port: IEEE 802.3 10BASE-T Ethernet
IEEE 802.3u 100BASE-TX Fast Ethernet
Network Protocol: TCP/IP, UDP, ARP, ICMP, TELNET, SNMP,
HTTP, RTP/RTCP, TFTP, NAT
DHCP
PPPoE
Network Management: SNMP
Telnet
Web-based GUI
Console
Security Feature: Password-Protected Administration on Telnet,
Console, Web and SNMP
Supports VLAN, avoid network storm