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Yealink T42S

Yealink T42S

The SIP-T42S IP phone is a dynamic business communications tool for superior voice communications and extended functionality. It has a faster, more responsive interface than the T42G and offers better overall performance. The SIP-T42S is a 12-line IP phone with multiple programmable keys for enhancing productivity. It is with Yealink Optima HD Voice Technology and wideband codec of Opus for superb sound quality and crystal clear communications. What’s more, the SIP-T42S is built with Gigabit Ethernet technology for rapid call handling. Plus, with an all-new USB port, the SIP-T42S boasts unparalleled functionality and expansibility, which comes ready for future Bluetooth, Wi-Fi and USB recording features. The new T4S series offers the same elegant appearance of the T4 line, but with improvements for greater interoperability and collaboration.

Technical Specs

Core Features

  • Revolutionarily new design
  • Yealink Optima HD voice
  • Dual-port Gigabit Ethernet
  • 2.7" 192x64-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" 192x64 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
The Breakfast Guarantee!
If I can't save you money we will buy your office breakfast! Send me your name and email address and I will request a phone bill. If I can't save you money, provide more features, and introduce disaster recovery to your phone system we will buy your entire office breakfast!