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AT620 Two Lines, Two Accounts IP Phone

AT620 Two Lines, Two Accounts IP Phone

High performance Broadcom solution to support crystal clear voice quality
SIP /IAX2 support
Back light on LCD display
2 SIP/IAX lines
G.722 high definition voice codec support
Elastix certified
Dual RJ45 port (WAN+PC) with Router/Switch function
Full duplex speaker with HIFI voice quality
L2TP VPN and Open VPN available
Wall mounted structure
Independent RJ9 headset support
Customized right tone for different regions
Auto provision of configuration by Mac address


  • SIP (SIP RFC3261,RFC 2543)/IAX2 support
  • 2 SIP lines + 1 IAX2 line
  • Redundancy sip server capable
  • Hotline
  • Call Forward、Call transfer、Call hold、Call waiting
  • 3-way Talking、Pickup、Join call、Redial、Unredial
  • Call Park、vport、click to dial
  • DND(Do Not Disturb)
  • Black List,Limit List
  • E.164 dial plan and customized dial rules


  • Tone generation and Local DTMF re-generation according with ITU-T
  • G.711(A-law or u-law) 、G722、G723、G726 and G729
  • AGC(Auto Gain Control)
  • AEC(Auto Echo Cancellation)
  • VAD (Voice Activity Detection)
  • CNG(Comfort Noise Generation
  • G.165 compliant 96 ms echo cancellation


  • Static/Dynamic WAN-IP-Addressing
  • NAT, Firewall
  • Support L2TP and OpenVPN
  • Support DMZ
  • WAN support Primary and Alter function
  • Qos support Diffserv
  • Support VLAN
  • DHCP client and server
  • Support PPPoE, (used for ADSL, cable modem connecting)


  • Web, telnet and keypad management
  • Adjustable user password and super password
  • Upgrade firmware through HTTP, FTP or TFTP
  • Telnet remote management
  • Upload/download configration file
  • Auto-provisioning ( firmware and configuration)
  • Safe mode provide reliability
  • Phone book, maximum 500 entries


  • 128 x64 Dot matrix
  • Support multi language ( LCD support Latin language system , web support all languages) and easy dynamic
  • switch between different laguages
  • Wall mounting
  • Full duplex speaker
  • MWI : Mono-color x 1
  • Line keys: Bi-Color x 2
  • Voicemail LED: Mono-Color x 1
  • Headset LED: Mono-Color x1
  • Mute LED: Mono-Color x 1
  • Speaker LED: Mono Color x 1


  • WAN * 1
  • LAN * 1
  • RJ9 handset Jack *1
  • RJ9 headset Jack * 1
  • Power jack * 1

Compliance Certificates

  • CE: EN55024 EN55022
  • FCC: part 15
  • ROHS in EU

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