# IP Phone Yealink SIP-T42U Grey LCD Wi-Fi

**URL:** https://aio.lv/en/product--yealink-sip-t42u--3520339
**Data updated:** 2025-12-12 13:27 (EET)
**Category:** VoIP Phones
**Manufacturer:** Yealink
**Manufacturer code:** SIP-T42U
**EAN:** 6938818304826
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 115.49 €
**Prices and availability valid until:** 2026-07-29 23:59
**Price without VAT (21%):** 95.45 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--yealink-sip-t42u--3520339

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 27.07.2026 | free |
| Pickup points | 30.07.2026 | 1.89 EUR |
| Courier delivery to door | 30.07.2026 | 4.99 EUR |

## Summary description

The Yealink SIP-T42U is a high-performance IP phone featuring a 4.3-inch grey LCD display and Wi-Fi connectivity. It supports SIP protocol and offers HD audio quality for clear calls. With multiple programmable keys and a user-friendly interface, it enhances productivity in any office environment. Ideal for businesses looking for reliable communication solutions.

## Long description

Yealink T42U IP phone features a 2.7" graphical backlit LCD, Optima HD voice with Acoustic Shield, support for up to 12 SIP accounts, PoE capability, dual-angle stand with wall-mount option, USB recording and optional wireless connectivity via USB dongles (Wi‑Fi WF40/WF50, Bluetooth BT41).
Advantages
Clear audio quality is provided by Yealink Optima HD Voice combined with Acoustic Shield and wideband codecs such as Opus and iLBC. The phone supports flexible connectivity and expansion through dual USB ports for optional Bluetooth, Wi‑Fi or a wireless headset dongle, and it offers Power over Ethernet (PoE) for simplified installation.
Key specifications
Display: 2.7" graphical LCD with backlight
Audio: Optima HD Voice, Acoustic Shield, Opus, iLBC, AEC
SIP accounts: Up to 12
Network: PoE support
Ports: Dual USB ports (supports recording and optional dongles)
Wireless (optional): Wi‑Fi via WF40/WF50, Bluetooth via BT41
Mounting: Desktop stand with two adjustable angles, wall‑mountable
How to use
Connect the phone to your network via Ethernet or PoE, configure SIP accounts through the device web interface or provisioning server, and adjust the stand to a comfortable viewing angle. Insert compatible USB dongles into a USB port to enable Wi‑Fi or Bluetooth, and use the USB port for call recording if required. Use the web interface or Yealink provisioning tools for firmware updates and centralized configuration.
Recommendations
For reliable operation in multi‑user environments, deploy the T42U with PoE and use Yealink RPS/boot provisioning for mass setup; add the WF40/WF50 or BT41 dongle only if wireless connectivity is needed.

## Specifications

### Display

| Feature | Value |
|---|---|
| Display | LCD |
| Display diagonal | 2.7 " |
| Display resolution | 192 x 68 |

### Phone features

| Feature | Value |
|---|---|
| Conference call | Yes |
| Phonebook capacity | 100 entries |
| Direct call | Yes |
| Caller ID | Yes |
| Call forwarding | Yes |
| Redialing | Yes |
| Speed dialling | Yes |
| Distinctive ring | Yes |
| Call hold | Yes |
| Call transfer | Yes |
| Call history | Yes |
| Number of VoIP accounts | 12 |

### Audio

| Feature | Value |
|---|---|
| Microphone mute | Yes |

### Ports & interfaces

| Feature | Value |
|---|---|
| USB 2.0 ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 2 |
| RJ-9 ports quantity | 2 |

### Network

| Feature | Value |
|---|---|
| Security algorithms | HTTPS |
| Ethernet LAN | Yes |
| Bluetooth | Yes |
| Wi-Fi | Yes |

### Power

| Feature | Value |
|---|---|
| Power consumption (typical) | 2.2 W |
| AC adapter input voltage | 100 - 240 |
| AC adapter output voltage | 5 |
| AC adapter output current | 1.2 A |
| Input frequency | 50/60 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Package weight | 6.3 g |
| Height | 175 mm |
| Width | 212 mm |
| Depth | 189 mm |
| Package depth | 256 mm |
| Package height | 235 mm |
| Package width | 627 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 10 - 95 |
| Operating temperature (T-T) | -10 - 50 |

### Design

| Feature | Value |
|---|---|
| Wall mountable | Yes |
| Product colour | Grey |
| Mounting | Desk/Wall |
| Device lock | Yes |
| Handset type | Wired handset |
| Product type | IP Phone |

### Management features

| Feature | Value |
|---|---|
| Integrated voicemail | No |
| Number of programmable keys | 6 |
| Number of function keys | 5 |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 85171800 |

## FAQ

### How much does the IP Phone Yealink SIP-T42U cost, and is it available for purchase?

The price is 115.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 84 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 27.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Yealink products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Yealink service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: display, bluetooth, ethernet lan, handset type, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

## Image

https://aio.lv/img/cache/product/3520339/51662545_large.webp