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điện thoại Ip Yealink Sip T21E2_www.phoenix-asia.net

công ty Tin Học Viễn Thông Liên Hoa

Tổng lượt truy cập: 146 - Cập nhật: 15/06/2018 23:00:00 PM
Liên hệ: 0983188823 (Ms Thu) để có giá tốtskype: thu_lotusEmail: thu.tranlotus-asia.net TI TITAN chipset and TI voice engine 3-line LCD(2 x 15 characters and an icon line) 2 VoIP...
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công ty Tin Học Viễn Thông Liên Hoa Công ty TNHH

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Liên hệ: 0983188823 (Ms Thu) để có giá tốt

skype: thu_lotus

Email: thu.tranlotus-asia.net

TI TITAN chipset and TI voice engine
3-line LCD(2 x 15 characters and an icon line)
2 VoIP accounts, Broadsoft /Avaya/Broadsoft validated
HD Voice: HD Codec, HD Handset, HD Speaker
31 keys including 9 function keys
Voicemail, Intercom
Localized language, Local 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
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, Paging
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