User manual

AT820
AT820
AT820
AT820 Series
Series
Series
Series User
User
User
User Manual
Manual
Manual
Manual
6
ATCOM TECHNOLOGY CO., LIMITED www.atcom.cn
1.3 Software
Supports Sip 2.0 (RFC3261) and other related SIP RFC .
Supports web control .
Supports Syslog .
Supports G711A/U, G722, G.723, G.726 , G.729, iLBC Codec .
Supports STUN .
Supports 2 SIP account s.
Supports SIP domain SIP authentication .
Supports DTMF (Inband, RFC2833 and I nfo ).
Supports voicemail .
Supports dial rule, IP to IP call .
Supports network time synchronization (NTP).
Supports speed dial .
Supports Call Forward, Call transfer, 3-way conference, Call hold, Call waiting,
Redial, Pickup, Call Park .
Supports VAD, CNG Jitter Buffer .
Supports DND (Do Not Disturb), Auto Answer, Blacklist, Block Call ID, Block
Anc Call .
Supports
HTTP, FTP,
TFTP updating the configuration and firmware .
Supports auto provision for config file upgrade .
Supports phone book with 100 records and 50 blacklist records .
Supports call log with 5 0 answered, 50 missed and 50 d ialed call records
respectively .
Supports multi-language
1.4 Network
S upports bridge mode and route mode.
Supports static
IP,
DHCP and PPPoE.
Supports VLAN (DATA VLAN and VOICE VLAN) .
Supports L2TP VPN .
Supports Qos , Qos supports Diffserv .
Supports basic NAT and NAPT .
1.5 Management and Maintenance
Supports firmware updating under safe mode .