*  2×15字符液晶显示屏

*  两线路，通过Broadsoft认证
 
*  高清（HD）音质：HD 编码, HD手柄, HD免提电话
 
*  31个按键（含9个功能键）
 
*  支持BLF/BLA, SMS信息，语言信箱，对话机
 
*  支持语言设置，XML远程电话簿
 
*  支持多种自动配置方式: FTP/TFTP/HTTP/PnP
 
*  支持SRTP/TLS/HTTPS等加密协议

Entry Level IP Phone
MODEL: SIP-T20

   TI TITAN chipset and TI voice engine
    2 VoIP accounts, 2x15 characters LCD
   HD Voice: HD Codec, HD speaker, HD handset
   Voicemail, SRTP/TLS/HTTPS, XML, MLS
   2xLAN, Headset, Wall-Mounted

Product Description:

*  TI TITAN chipset and TI voice engine

*  3-line LCD(2 x 15 characters and an icon line)

*  2 VoIP accounts, Broadsoft validated

*  HD Voice: HD Codec, HD Handset, HD Speaker

*  31 keys including 9 function keys

*  Voicemail, Intercom

*  Localized language, XML phonebook

*  FTP/TFTP/HTTP, PnP Auto-provision

*  SRTP/HTTPS/TLS, VLAN, QoS

*  PoE, Headset, Wall-Mounted

Phone Features
2 VoIP accounts, hotline, emergency call
Call waiting, call transfer, call forward
Hold, mute, flash, auto-answer, redial
3-way conference, DND, speed dial
XML phonebook import/export, call history
Volume adjustment, ring tone selection
Tone scheme, System log
Multi-language (more than 20)

IP PBX System Integration
Dial plan, dial-now
Voicemail, MWI
Intercom
XML phonebook
Call park, call pickup
Distinctive ringtone

Codecs and Voice Features
Wideband codec: G.722
Narrowband codec: G.711, G.723.1, G.726, G.729AB
VAD, CNG, AEC, PLC, AJB, AGC
Full-duplex hands-free speakerphone with AEC

Network Features
SIP v1 (RFC2543), v2 (RFC3261)
NAT Traversal: STUN mode
DTMF: In-Band, RFC2833, SIP Info
Proxy mode and peer-to-peer SIP link mode
IP Assignment: Static/DHCP/PPPoE
TFTP/DHCP/PPPoE client
Telnet/HTTP/HTTPS server
DNS client
NAT/DHCP server

Management
FTP/TFTP/HTTP/PnP auto-provision
Configuration: browser/phone/auto-provision
Direct IP call without SIP proxy
Dial number via SIP server
Dial URL via SIP server

Security
HTTPS (server/client)
SRTP (RFC3711)
Transport Layer Security (TLS)
VLAN (802.1 pq), QoS
Digest authentication using MD5/MD5-sess
Secure configuration file via AES encryption
Phone lock for personal privacy protection
Admin/user configuration mode

Physical Features
TI TITAN chipset
3-line LCD with an icon line and 2x15 characters lines
31 keys including 9 function keys
4 LEDs: 1xpower, 2xline, 1xmessage
1xRJ9 handset port
1xRJ9 headset port
2xRJ45 10/100M Ethernet ports
Wall-mounted
Power adapter: AC 100~240V input and DC 5V/1.2A Output
Power over Ethernet (IEEE 802.3af)
Power consumption: 1.4-2.6W
Net weight: 0.77kg
Dimension: 185 x 200 x 90mm
Operating humidity: 10~95%
Storage temperature: up to 60°C