IP Phone AT-620

Business VoIP Phone with Broadcom Chipset Inside

AT620 IP Phone is the new business IP Phone launched in 2009. Continuing providing high voice quality and stable performance, AT620 IP Phone adopts new fashion design with attractive looking and business IP Phone style.

AT620 supports SIP and IAX2. It is 2 lines IP Phone with 4 softkeys. Easier navigation and User friendly menu would enhance your IP Phone experience.


Business IP Phone
Key features
Sip 2.0 (RFC3261)
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/u?G722?G.723?G.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

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
Safe mode provide reliability
Phone book, maximum 100 entries.

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
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)
AGC(Auto Gain Control)
G.168/165 compliant 16ms echo cancellation
AEC(Auto Echo Cancellation)
VAD (Voice Activity Detection)
CNG(Comfort Noise Generation

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 65 C (-22 to 149F)
Humidity: 10 to 90% no dew


Standard Component:

Item Qty Remarks
Phone 1 LCD Display, Keypad
Adaptor 1
CD 1 User Manual


Inner box MEAS 33822085mm
G.W./unit 1.4kg
Carton MEAS 456442362mm
G.W. 15kg
PCS/CTN 10pcs

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