- Support 2 SIP
- 128*64 DOTS
- 4 softkeys
AT820 is a user friendly, two lines IP phone with rich function and crystal voice quality,support multi language. Because of the good compatibility with all kinds of standard SIP softswitch and IP PBX system, it is the best choice of VoIP service based on broadband for SMB market.
Features:
- High performance Lantiq solution to support crystal clear voice quality
- SIP support
- Back light on LCD display
- Support hardware HD voice and G.722 codec
- Support 2 SIP lines
- Elastix certified
- Dual RJ45 port (WAN+PC) with Router/Switch function
- Full duplex speaker with HIFI voice quality
- Suppport VLAN
- L2TP VPN without IPSec
- Wall mounted structure
- Independent RJ9 headset support
- Customized right tone for different regions
- Auto provision of configuration
Specifications:
- VoIP
- Sip 2.0 (RFC3261) and other related SIP RFC
- 2 SIP Accounts
- STUN
- Support SIP domain,SIP authentication(none,basic,MD5),NDS
- Support in band audio, RFC2833 and SIP info,DTMF transmission way
- SIP Call Forward,Call transfer,Call hold,Call waiting, 3-way talking,Pickup,Redial,Call Park
- Support DND(Do Not Disturb),Blacklists,Auto answer
- Dial-peer calling rule, IP to IP call
- Phone book with 100 records, 50 dialed\answered call\missed calls
- Support HTTP,FTP TFTP updating the configuration
- Support multi language
- Support SMS
- Voice
- G.711A/u, G722, G.723, iLBC, G.726-16, G.726-24, G.726-32, G.726-40, G.729 Codec
- G. ...