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Yealink SIP-T42G IP Phone

Yealink SIP-T42G IP Phone is intended for use in commercial settings. The phone's Yealink Optima HD voice technology provides the user with incredibly clear conversations.

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The Yealink SIP-T42G IP Phones includes a speakerphone as well as headset support via the RJ9 headset port on the phone interface. The incorporation of advanced technologies such as echo cancellation, full-duplex, and adaptive jitter buffers has improved the phone’s acoustics even further. The phone’s interface is made up of five feature keys: message, redial, headset, speakerphone, and mute. The phone interface also includes six-line keys with LED and four context-sensitive keys. On the phone, there is a dual-port Gigabit Ethernet switch.


  • The SIP-T42G is a three-line business VoIP phone with support for up to three SIP accounts.
  • Direct IP calls are supported without the use of a SIP proxy.
  • Integrated PoE provides both data connectivity and electronic power via a single cable.
  • Call transfer, call return, auto-answer, call forwarding, SCA, and BLF list is among the features that support 3-way conferencing. A 2.8″ 132×264-pixel 4-level grayscale graphical LCD screen with backlight provides an excellent visual experience for the user.
  • Caller ID with name and number, call history, an intelligent search method, a phone book search, an XML remote phonebook, and a local phonebook with 1000 entries are all included.
  • A voice mail system is used to exchange voice messages and deliver voice information.
  • The call park feature, which allows the user to place a call on hold, is commonly used in large offices and buildings with many rooms.
  • The SIP-T42call-pick-up G’s feature allows one user to answer another user’s call.
  • The phone supports call server redundancy. The phone lock function safeguards against invasion of privacy.
  • Speed dial, ACD, anonymous call rejection, hot desking, and LDAP are all included with the SIP-T42G.
  • It is wall-mountable and has a stand that can be adjusted to two different angles.
  • labeled without using paper

Buy Yealink SIP T42G IP Phone | AcmaTel Communications

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Product Specification


Audio Features
Call forward, call waiting, call transfer Yes
Codec: G.722, G.711(A/μ), G.729AB, G.726, iLBC Yes
Direct IP call without SIP proxy Yes
DTMF: In-band, Out-of-band(RFC 2833) and SIP In-band, Out-of-band(RFC 2833) and SIP
Full-duplex hands-free speakerphone with AEC Yes
Group listening, SMS Yes
Local 3-way conferencing Yes
Redial, call return, auto answer Yes
1 VoIP account Yes
Black list Yes
Call history: dialed/received/missed/forwarded Yes
Intelligent search method Yes
Phonebook search/import/export Yes
XML remote phonebook Yes
Loal phonebook up to 1000 entries Yes
Display and Indicator
132×64-pixel graphical LCD Yes
Caller ID with name, number Yes
Intuitive user interface with icons and soft keys Yes
LED for call and message waiting indication Yes
Red or Green illuminated LEDs for line status information Yes
National language selection Yes
1xRJ9 (4P4C) handset port Yes
1xRJ9 (4P4C) headset port Yes
Power over Ethernet (IEEE 802.3af), class 2 Yes
2xRJ45 10/100M Ethernet ports Yes
IP-PBX Features
Anonymous call, anonymous call rejection Yes
Call completion Yes
Hot-desking, emergency call Yes
Message Waiting Indicator (MWI) Yes
Voice mail, call park, call pickup Yes
Bridged Line Apperance(BLA) Yes
Busy Lamp Field (BLF) Yes
Intercom, paging, music on hold Yes
Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy Yes
Auto-provision with PnP Yes
Configuration Yes
Package tracing export, system log Yes
Reset to factory, reboot Yes
Zero-sp-touch,TR-069 Yes
Phone lock for personal privacy protection Yes
Network and Security
Call server redundancy supported Yes
Digest authentication using MD5/MD5-sess Yes
HTTP/HTTPS web server Yes
HTTPS certificate manager Yes
IEEE802.1X Yes
IP assignment: static/DHCP Yes
IPv6 Yes
Proxy mode and peer-to-peer SIP link mode Yes
QoS 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
SIP v1 (RFC2543), v2 (RFC3261) Yes
SRTP for voice Yes
AES encryption for configuration file Yes
CDP (Cisco Discovery Protocol) Yes
NAT transverse Yes
Time and date synchronization using SNTP Yes
Transport Layer Security (TLS) Yes
Other Physical Features
Dimension(W*D*H*T): 212mm*189mm*175mm*54mm
Power consumption (PoE) 2.1-5.9W
Power consumption (PSU) 1.4-3.9W
Stand with 2 adjustable angles Yes
External universal AC adapter AC 100~240V input and DC 5V/600mA output
Operating humidity 10~95%
Operating temperature: -10~50°C
Wall mountable Yes
Package Features
Carton Meas 627mm*256mm*235mm
G.W/CTN 6.4kg
N.W/CTN 6.4kg
Giftbox size: 246mm*223mm*120mm
Phone Features
One-touch speed dial, hotline Yes
1 VoIP account Yes
Call hold, mute, DND Yes
Dial plan Yes
Direct IP call without SIP proxy Yes
Group listening, SMS Yes
Integrated Screenshots Yes
One-touch speed dial, hotline Yes
Redial, call return, auto answer Yes
Ring tone selection/import/delete Yes
Set date time manually or automatically Yes
XML Browser, action URL/URI Yes
Local 3-way conferencing Yes
Redial, call return, auto answer Yes

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