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.
Phone Features
Concise appearance but Firm design
HD Voice (handset, speaker phone)
Easy Configuration
Compatible with a wide range of devices
| Display | |
| LCD Display | 128 x 64 dot matrix LCD |
| LCD Size | 3.2" |
| LCD Comtrast | 6 levels |
| LCD Backlight | Yes |
| SIP Features | |
| SIP Accounts | 2 |
| SIP Compatibility | SIP v1 (RFC2543), v2 (RFC3261),Asterisk,Broadsoft, ATCOM IP PBX |
| Install Option | |
| Desk Mount | Yes |
| Wall Mount | No |
| Audio Features | |
| Ringtones | 10 + 2 user define |
| Ringer Volume | 8 levels + off |
| Audio Codec | G.711(A/μ),G.722(Wideband),G.726,G.729AB,iLBC |
| Keys Features | |
| Programmable Keys | 0 |
| Features Keys | 4 features keys (Mute, Headset, hands-free speakerphone, Message) |
| Line LED Keys | 4 |
| Volume Control Keys | 2 |
| Context Sensitive Soft Keys | 4 |
| Navigation Keys | 5 |
| Software Features | |
| Phone Book (Entries) | 100 |
| Call Log Entries | 50 Dialed calls + 50 Answered Calls + 50 Missed Calls |
| Conferncing | 3 parties |
| Music On Hold | Supplied by Host Service (PBX/SIP Server) |
| Network Features | |
| IP Version | IPv4 |
| IP Assignment | Yes ( Static / DHCP / PPPoE ) |
| DNS | Yes ( Primary and Secondary DNS supported ) |
| HTTP | Yes |
| SNTP Client | Yes |
| VLAN (802.1Q) | Yes |
| QoS (DiffServ) | Yes |
| VPN | Yes (L2TP VPN supported) |
| NAT Transverse | Yes (STUN mode) |
| Security | Yes (SRTP / TLS supported) |
| Configuration | |
| Plug & Play Configuration | Server based configuration |
| Manual Configuration | InternalWeb Configurator, Local (LCD based) network Configuration |
| Auto Provision | TFTP / FTP / HTTP / PnP |
| Interface | |
| Ethernet Ports | 2 10 / 100 Mbps |
| PoE (Power over Ethernet) | IEEE 802.3af Class 2 standard compliant |
| Headset Jack | 1 RJ9 |
| Handset Jack | 1 RJ9 |
| Power adapter Jack | 3.5mm,DC 12V ,500mA |
| Others | |
| Power Consumption | 5W |
| Operating Humidity | 10 - 90% |
| Operating Environment | 0°C - 45°C (32°F - 113°F) |
| Dimension(W * D * H) | 18.5*18.9*11.8 |
| Weight (KG) | 1.10 |
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