Yealink T42U IP Phone (Refurbished)
Refurbished Yealink T42S IP Phone with 2.7″ backlit display, Gigabit ports, Optima HD voice, and support for up to 12 SIP accounts. Fully cleaned, tested, and comes with new cables and a 12-month warranty (optional 24-month upgrade). PoE-powered with an optional power supply available separately. Free next day delivery.
£38.00 exc vat
PRODUCT OVERVIEW
The refurbished Yealink SIP-T42U IP Phone is a versatile business telephone for office users, reception teams and organisations requiring dependable multi-line VoIP calling with flexible accessory support.
It combines support for up to twelve SIP accounts with a clear backlit display, six illuminated line keys, dual Gigabit Ethernet, Power over Ethernet and two USB ports for compatible headsets, call recording and optional wireless adapters.
Excellent Condition
Professionally refurbished, fully tested and cleaned. Very clean with minimal signs of previous use. The handset audio, microphone, speakerphone, display, keypad, headset port, USB ports and network connections are checked before dispatch.
Good Condition
Professionally refurbished, fully tested and cleaned. May show light cosmetic wear such as minor marks, surface wear or light keypad wear, but remains presentable and fully functional.
WHAT’S INCLUDED
- ✓ Yealink SIP-T42U IP Phone
- ✓ Telephone Handset
- ✓ New Curl Cord
- ✓ New RJ45 Patch Lead
- ✓ Adjustable Desktop Stand
- ✓ New Plain White Packaging
- ✓ 12-Month PCL Warranty
- ✓ Free Next Day UK Delivery
OPTIONAL EXTRAS
- + Yealink 5V / 1.2A Power Adapter
- + Yealink WF40 or WF50 Wi-Fi Dongle
- + Compatible Yealink Bluetooth Dongle
- + Compatible USB Headset
- + Compatible RJ9 Wired Headset
- + Yealink EHS40 Headset Adapter
- + PoE Injector
- + Compatible Wall-Mount Bracket
- + 24-Month Extended Warranty
KEY FEATURES
12 SIP Accounts
Supports multiple VoIP lines, extensions and identities
Supports multiple VoIP lines, extensions and identities
Backlit Display
2.7-inch 192 × 64 graphical LCD for calls and menus
2.7-inch 192 × 64 graphical LCD for calls and menus
Advanced HD Audio
Optima HD Voice with Acoustic Shield and noise filtering
Optima HD Voice with Acoustic Shield and noise filtering
Programmable Controls
Six line keys with multiple pages for flexible assignments
Six line keys with multiple pages for flexible assignments
Gigabit Ethernet and PoE
Fast networking with one-cable power support
Fast networking with one-cable power support
Dual USB Ports
Supports headsets, recording and optional wireless adapters
Supports headsets, recording and optional wireless adapters
DESIGNED FOR BUSINESS
The Yealink SIP-T42U is designed for professional users who need flexible multi-line calling, programmable controls and modern accessory support in a compact desktop phone.
Up to twelve SIP accounts can be configured, allowing the phone to support multiple extensions, telephone numbers or service providers where permitted by the connected platform.
Six illuminated line keys can be assigned to SIP accounts, speed dials, Busy Lamp Field indicators, monitored extensions and platform-supported call functions.
Multiple display pages expand the available programmable assignments without requiring printed paper labels.
The 2.7-inch backlit graphical display shows caller information, line status, call history, menus and directory entries.
Yealink Optima HD Voice combines professional acoustic hardware, wideband codecs and audio processing to support clear business conversations.
Acoustic Shield and Smart Noise Filtering help reduce unwanted background sound transmitted to the other caller.
A full-duplex speakerphone with acoustic echo cancellation allows both participants to speak naturally during hands-free conversations.
The handset uses a Hall-effect switch rather than a conventional mechanical hook switch, helping provide quiet and dependable on-hook detection.
Common call functions include hold, mute, transfer, forwarding, call waiting, Do Not Disturb, call pickup, call parking and voicemail access.
Local conferencing is supported, subject to firmware and telephone-platform configuration.
Directory support can include local contacts, remote XML phonebooks, LDAP and synchronised provider directories.
Dual Gigabit Ethernet ports allow the phone and a nearby computer to share one wired network connection without restricting the computer to Fast Ethernet speeds.
IEEE 802.3af Power over Ethernet allows a compatible network switch or injector to provide electrical power and network data through one Ethernet cable.
Where PoE is unavailable, the phone can use an optional compatible Yealink 5V/1.2A mains power adapter.
Two USB Type-A ports provide flexible support for compatible USB headsets, USB storage devices and Yealink wireless accessories.
USB call recording is supported when a suitable storage device, firmware and telephone-platform configuration are used.
Optional Yealink WF40 or WF50 adapters can add Wi-Fi connectivity where a wired network connection is unavailable.
Optional Yealink Bluetooth adapters support selected compatible wireless headsets and mobile-device connectivity.
Wi-Fi and Bluetooth are not built into the phone and require the correct optional USB accessories.
The dedicated RJ9 headset port supports compatible professional wired headsets using the appropriate connection cable.
Electronic Hook Switch support allows selected wireless headset systems to answer and end calls remotely when used with the Yealink EHS40 or another compatible solution.
The adjustable desktop stand provides two viewing positions and the phone can also be wall mounted using the appropriate accessory.
Yealink RPS, zero-touch provisioning and unified T4U firmware help simplify installation and management across larger deployments.
The phone requires a compatible SIP account, hosted VoIP service or IP-PBX configuration. These services are not included with the hardware.
TECHNICAL SPECIFICATIONS
| Model | Yealink SIP-T42U |
| Product Type | Gigabit Business SIP Phone |
| SIP Accounts | Up to 12 |
| Line Keys | 6 with LEDs |
| Display | 2.7-Inch Backlit Graphical LCD |
| Display Resolution | 192 × 64 Pixels |
| Audio Technology | Yealink Optima HD Voice |
| Noise Reduction | Acoustic Shield and Smart Noise Filtering |
| Wideband Codecs | Opus and G.722 |
| Speakerphone | Full Duplex with AEC |
| Handset Hook Switch | Hall-Effect Switch |
| Network Ports | 2 × Gigabit RJ45 |
| Computer Pass-Through | Yes |
| Power over Ethernet | IEEE 802.3af |
| Optional Mains Adapter | 5V / 1.2A |
| Power Adapter Included | No, Unless Stated |
| USB Ports | 2 × USB Type-A |
| USB Uses | Headset, Recording, Wi-Fi or Bluetooth |
| Built-In Wi-Fi | No |
| Optional Wi-Fi | WF40 or WF50 USB Dongle |
| Built-In Bluetooth | No |
| Optional Bluetooth | BT40, BT41 or BT52 USB Dongle |
| Handset Port | RJ9 |
| Headset Port | RJ9 |
| Electronic Hook Switch | EHS40 Supported |
| USB Recording | Supported |
| Desktop Stand | Two Adjustable Angles |
| Wall Mountable | Yes, Optional Bracket |
| Provisioning | RPS, XML and Zero Touch |
| Security | TLS, SRTP, HTTPS and 802.1X |
| Condition | Professionally Refurbished |
| Colour | Classic Grey |
OUR 8-POINT REFURBISHMENT PROCESS
1. Fully Tested
Handset audio, microphone, speakerphone, display, keypad, headset port, USB port and network connections are checked by our experienced technicians.
2. Deep Cleaned
Each item is sanitised and professionally cleaned before resale.
3. New Leads & Cables
New high-quality leads and cables are supplied where stated.
4. Fresh Parts
High-wear or damaged parts are replaced where required.
5. Cosmetics
Cosmetic details are restored or replaced where practical.
6. Reset & Prepared
Previous account and provisioning information is cleared and the phone is prepared for configuration.
7. Final Inspection
Every item receives a final quality-control inspection.
8. Secure Packaging
Securely packed in clean protective packaging for delivery.
COMPATIBILITY & SETUP
The Yealink SIP-T42U is a SIP network phone and requires a compatible hosted VoIP provider, SIP server or IP-PBX.
The phone connects through Gigabit Ethernet and can receive power from a compatible IEEE 802.3af PoE switch or injector.
Where PoE is unavailable, a compatible Yealink 5V/1.2A power adapter is required. The adapter is not included unless specifically stated.
Wi-Fi is not built in. Wireless network connectivity requires a compatible Yealink WF40 or WF50 USB Wi-Fi dongle.
Bluetooth is not built in. Bluetooth headset or mobile-device connectivity requires a compatible Yealink USB Bluetooth dongle.
The two USB ports allow more than one compatible USB accessory to be connected, subject to firmware, accessory and power requirements.
Compatible wired professional headsets can connect through the RJ9 headset port. Selected wireless headset systems can use the Yealink EHS40.
Available calling functions, directories, programmable keys and Busy Lamp Field behaviour depend on the selected VoIP provider and administrator configuration.
Please note: A SIP account, telephone number, hosted licence, PoE equipment, power adapter, Wi-Fi dongle, Bluetooth dongle and headset are not included unless specifically stated.
IDEAL FOR
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BUY REFURBISHED WITH CONFIDENCE
Professionally tested • New leads and cables • 12-month warranty • Free next day UK delivery