Technical Specs
Core Features
Revolutionarily new design
Yealink Optima HD voice
Dual-port Gigabit Ethernet
2.7″ 192×64-pixel graphical LCD with backlight
Up to 12 SIP accounts
Paper label free design
PoE support
Headset, EHS support
Integrated stand with 2 adjustable angles
Simple, flexible and secure provisioning options
Audio Features
HD voice: HD handset, HD speaker
Wideband codec: G.722
Codecs: G.722, G.711(A/μ), G.723, G.729AB, G.726, GSM
DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO
Full-duplex hands-free speakerphone with AEC
VAD, CNG, AEC, PLC, AJB, AGC
Phone Features
12 VoIP accounts
One-touch speed dial, redial
Call forward, Call waiting, Call transfer, Call hold
Call return, group listening
Mute, Auto answer, DND
Call history: dialed/received/missed/forwarded
3-way confernecing
Direct IP call without SIP proxy
Ring tone selection/import/delete
Hotline, Emergency call
Set date time manually or automatically
Dial Plan, Push XML, Action URL
Directory
Loal phonebook up to 300 entries
Broadsoft Contacts: Custom/Enterprise/Personal/Common/Search/Speed Dial
Black list
XML/LDAP remote phonebook
Intelligent search method
Phonebook search/import/export
IP-PBX and BroadSoft Features
Busy lamp field (BLF), BLF list
Bridged line apperance(BLA)/SCA
Anonymous call, Anonymous call rejection
DND & forward synchronization
BroadWorks Anywhere
N-Way Calling, Remote Office
Network Call Logs – Basic
Broadsoft call center features
Message waiting indicator (MWI)
Voice mail,Call park, Call pickup
Intercom, paging, Music on hold
Call recording
Display and Indicator
2.7″ 192×64 pixel 4-level grayscale graphical LCD with backlight
LED for call and message waiting indication
Dual-color (red or green) illuminated LEDs for line status information
Intuitive user interface with icons and soft keys
National language selection
Caller ID with name, number
Feature keys
6 line keys with LED
6 line keys can be programmed up to 15 various features (3-page view)
5 features keys: Message, Headset, Mute, Redial, Hands-free speakerphone
4 context-sensitive “soft” keys
6 navigation keys
2 volume control keys
Illuminated mute key
Illuminated headset key
Illuminated hands-free speakerphone key
Interface
Dual-port Gigabit Ethernet
1xRJ9 (4P4C) handset port
1xRJ9 (4P4C) headset port
Power over Ethernet (IEEE 802.3af), Class 2
Other Physical Features
Stand with 2 adjustable angles
External Universal AC Adapter (optional): AC 100~240V input and DC 5V/2A output
Power consumption (PSU): 1.4W-3.9W
Dimension(W*D*H*T): 212mm*189mm*175mm*54mm
Operating humidity: 10~95%
Storage temperature: -10~50°C
Management
Configuration: browser/phone/auto-provision
Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
Auto-provision with PnP
BroadSoft device management
Zero-sp-touch, SNMP
Provisioning server redundancy supported
Reset to factory, Reboot
Package tracing export, System log
Network and Security
SIP v1 (RFC2543), v2 (RFC3261)
NAT transverse: STUN mode
Proxy mode and peer-to-peer SIP link mode
IP assignment: static/DHCP
HTTP/HTTPS web server
Time and date synchronization using SNTP
UDP/TCP/DNS-SRV(RFC 3263)
QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
SRTP for voice
Transport Layer Security (TLS)
HTTPS certificate manager
AES encryption for configuration file
Digest authentication using MD5/MD5-sess
OpenVPN, IEEE802.1X
IPv6
Included In The Box
T42S device
2-way desk stand
No power supply included
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