タイトルまたは説明

Features
One RS**2 port for configuration
Two standard RJ*1 ports, FXS for analog phones
One bypass port
 4 *0/**0M BASE-T connect LAN
    1 optical port
Supports VLAN TAG
Supports static/dynamic NAT translate
Supports Modem NAT
Supports Jitter Buffer to clear network jitter
Supports static IP address configure
Supports PPPoE (Point to Point Protocol over Ethernet)/DHCP (Dynamic Host Configuration Protocol) Server, performance IP address dynamic distribute, enhance management convenience and access flexibility
PPPoE/DHCP auto redial when off line
Supports on line software upgrade
Self-learn MAC address
Capacity to define one virtual MAC virtual per each VLAN associated to every PPPoE session
Supports multi configure, as Console, Web, Telnet
Management Users level authority, high security
Force reset factory setting, good surviva
Supports quite tone detect/ CNG (Comfort Noise Generation)
Supports T.*0/ T.*8 fax, fax translate
Support T.*8 compliant Group 3 Fax Relay up to *4.4kpbs and auto-switch to G.**1 for Fax
Pass-through
Support the Modem call function
Billing mode: Polarity
Telecom grade lighten proof
Recover loss package feature
Auto-sensing dynamic buffer technology, Max **0ms, to meet bad network environment application
Adopt authority verify  network security mode
Supports Caller detect and Caller ID
Option DTMF band internal/external transmission technology
Option /output gain control
Supports polarity control（need operator support such service）
Supports call wait, call transfer, call forward,
abbreviation dial, no-disturb (need operator support such service)
Supports *4/*8/*6/*4/*8/*2/9/6/*1/5.5/3/2/1Mbps wireless LAN data transfer rates
Supports *4/***-bits WEP, complies with **8 bit WPA standard (TKIP/AES)
Protocol
Control Protocol: MGCP/SIP, supports on line
upgrade and modify between two protocols
Voice Codecs: G.**1 (A-law and u-law), G.**3.1,
G.**9, supports voice compress arithmetic
dynamic switch
Analog voice interface: DTMF detect
Echo cancellation: G.**5/G.**8
Ethernet port: IEEE **2.3 *0BASE-T Ethernet;
IEEE **2.3u **0BASE-TX Fast Ethernet
WiFi: IEEE **2.*1g、IEEE **2.*1b、IEEE **2.*1a
Network Protocol: TCP/IP, UDP, ARP, ICMP,
TELNET, SNMP,  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
Powerful QoS
Based on IPv4 ToS and distinguish service, set
different service level according to different
package to ensure voice packages high priority
Based on IEEE**2.1p *-level priority, Tag high
priority on voice package to ensure voice quality