User manual

AT-620 User Manual
ATCOM TECHNOLOGY CO., LIMITED
4、 Software
¾ Sip 2.0 (RFC3261)
¾ Two lines SIP, support IAX2
¾ STUN
¾ Jitter Buffer(200ms),VAD,CNG
¾ G.711A/u、G722、G.723、G.729 Codec
¾ G.168 compliant 96ms echo cancellation
¾ Support SIP domain，SIP authentication(none，basic,MD5）.
¾ Support inbound audio, RFC2833 and SIP info , DTMF transmission way
¾ SIP Call Forward、Call transfer、Call hold、Call waiting, 3-way talking、
Pickup、Join call、Redial、Unredial、Call Park、Vport、Click to dial
¾ Dial without register
¾ Support Hotline、DND(Do Not Disturb)、Blacklists、Call Limitation、DND、
Incoming list
¾ Dial-peer calling rule, IP to IP call
¾ SIP server conference
¾ Phone book with 500 records, 100 answered call、missed call for each
¾ Support HTTP、FTP TFTP updating the configuration and firmware
¾ Syslog
¾ Answering machine
¾ Support SNTP client
¾ Telnet, WEB visit terminal
¾ Support different level user management
¾ Support multi language ( LCD support Latin language system, web
support all languages)
¾ soft button: soft button * 4
5、 Network：
¾ WAN/LAN：Support bridge or route mode
¾ Support base of NAT and NAPT
¾ Support PPPoE，（ADSL，cable modem use for internet connecting）
¾ Support VLAN（DATA VLAN and VOICE VLAN）
¾ Support DMZ
¾ Support L2TP VPN（OpenVPN optional）
¾ WAN support Primary and Alter function
¾ WAN support DHCP Client
¾ LAN support DHCP Server
¾ Qos support Diffserv
¾ Support Network command tool: include ping, trace route, telnet