AT620 IP Phone is the new business IP Phone launched in 2009. Delivering high voice quality and stable performance, the AT620 IP Phone adopts a brand new design with attractive looking chassis and new Broadcom chip

The AT-620 supports SIP and IAX2 making this a perfect end point for remote workers on Asterisk based systems.  

This a 2 line IP Phone with 4 softkeys and easy navigation and User friendly menu that will enhance your IP Phone experience.

AT620 Quick Start Manual Download

AT620 User Manual Download

• Sip 2.0 (RFC3261)
• STUN
• Two lines SIP and one line IAX2
• Support multi language ( LCD support Latin language system , web support all languages) and easy dynamic switch between different laguages
• Softkey * 4
• RJ9 headset jack
• Wall Mountable
• Jitter Buffer(200ms),VAD,CNG
• G.711A/G722G.723G.729 Codec
• G.168 compliant 96ms echo cancellation
• Support SIP domain，SIP authentication(none，basic， MD5）.
• Support inbound audio, RFC2833 and SIP info , DTMF transmission way
• SIP Call Forward - Call transfer - Call hold - Call waiting - 3-way Talking - Pickup - Join call - Redial - Unredial -Call Park - vport - click to dial
• Dial without register
• Suppot Hotline - DND(Do Not Disturb) - BlackList - Call Limitation - DND -Incoming list
• Dial-peer calling rule - IP to IP call
• SIP server conference
• Phone book 500 records; answered call、missed call 100 for each
• Support configuration and firmware updating by HTTP, FTP, TFTP
• Support decrypting configuration file during auto provision
• Support SIP signal and media(RTP) encryption
• Answering machine
• Support SNTP client
• Telnet, WEB visit terminal
• Support different level user management
• PoE(Power on Ethernet)(AT620P)
• Data Features:
• Static/Dynamic WAN-IP-Addressing
• PPPoE

Management

• Web, telnet and keypad management.
• Adjustable user password and super password
• Upgrade firmware through HTTP, FTP or TFTP.
• Telnet remote management.
• Upload/download setting file
• Auto-provisioning
• Safe mode provide reliability
• Phone book, maximum 100 entries.

Interface

• Two RJ45 ports, one for WAN, one LAN.
• Power ports
• 2 Handset ports

Data networking

• MAC Address
• TCP:Transmission Control Protocol
• DHCP:Dynamic Host Configuration Protocol
• PPPoE:PPP Protocol over Ethernet
• POE(option)
• SNTP, Simple Network Time Protocol
• STUN - Simple Traversal of User Datagram ...
• MD5 Message-Digest Algorithm
• DNSDomain Name Server
• RTP: Real-time Transport Protocol
• RTCP:Real-time Control Protocol
• Telnet:Internet's remote login protocol
• HTTP:Hyper Text Transfer protocol
• FTP:File Transfer protocol
• TFTP:Trivial File Transfer Protocol

Call control /voip Features

• SIP RFC3261,RFC 2543
• Tone generation and Local DTMF re-generation according with ITU-T
• G.711(A-law or u-law)
• G.723.1(6.3kbps,5.3 kbps)
• G729
• AGC(Auto Gain Control)
• G.168/165 compliant 16ms echo cancellation
• AEC(Auto Echo Cancellation)
• VAD (Voice Activity Detection)
• CNG(Comfort Noise Generation

Enviromental

• Electric requirements
• Voltage: 9V - 24V
• Power adapter: output DC 12V/450 mA
• Operating requirement
• Operation temperature: 0 to 40 C ( 32 to 104F)
• Storage temperature: -30 to