# IP Phone Yealink SIP-T48U Grey LED Wi-Fi

**URL:** https://aio.lv/en/product--yealink-sip-t48u--3539120
**Data updated:** 2025-09-04 19:05 (EEST)
**Category:** VoIP Phones
**Manufacturer:** Yealink
**Manufacturer code:** SIP-T48U
**EAN:** 6938818304321
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 211.99 €
**Prices and availability valid until:** 2026-07-30 23:59
**Price without VAT (21%):** 175.20 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--yealink-sip-t48u--3539120

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

The Yealink SIP-T48U is a high-performance IP phone featuring a 7" LED display with a resolution of 800 x 480 pixels. It supports a wide range of voice codecs including G.711, G.722, and G.729ab, ensuring excellent audio quality. With a phonebook capacity of 1000 entries, it is perfect for busy professionals. The device offers Gigabit Ethernet connectivity for fast data rates and enhanced security with AES, HTTPS, and TLS protocols. Ideal for modern office environments.

## Long description

The Yealink SIP-T48U is a business-grade IP phone with a seven-inch, 800 x 480-pixel backlit color LED touch screen that provides clear visual presentation and straightforward navigation. It supports multiple connectivity options including built-in Bluetooth and Wi‑Fi, two USB ports for a USB headset or USB recording, Gigabit Ethernet and PoE. The SIP-T48U also supports up to 29 one-touch DSS keys and can connect up to three expansion modules to add up to 180 additional programmable buttons with LCD and LED indicators. Audio performance is enhanced by Yealink Optima HD Voice and support for the Opus codec, and the handset is hearing-aid compatible. Security and interoperability are provided via TLS/SSL and compatibility with major softswitch vendors.
Advantages
The phone’s large color touch screen combined with two USB ports enables flexible use of Bluetooth, Wi‑Fi, USB headset and recording features. High audio quality is delivered through HD voice technology and Opus support, adapting to both high and low network bandwidth conditions. The device allows extensive customization with 29 programmable DSS keys and optional expansion modules for up to 180 extra keys. Centralized deployment and maintenance are simplified through Yealink’s provisioning services and unified firmware, while TLS/SSL and common security protocols safeguard communications.
Suitable for
Office workers and receptionists requiring multiple programmable keys
Conference rooms and shared workspaces needing clear audio and touchscreen control
IT environments that require centralized provisioning and PoE deployment
Users needing Bluetooth/USB headset connectivity and optional call recording
Key specifications
Display: 7" LED backlit color touchscreen, 800 x 480 pixels
Connectivity: Gigabit Ethernet, Wi‑Fi, Bluetooth, 2× USB ports
Power: Power over Ethernet (PoE) support
Audio: Yealink Optima HD Voice, Opus codec support, hearing-aid compatible handset
Programmable keys: 29 one-touch DSS keys; up to 3 expansion modules (up to 180 additional keys)
Phonebook: up to 1000 entries
Security: TLS/SSL, HTTPS, AES
Colour: Grey
How to use
Connect the SIP-T48U to the network using the Gigabit Ethernet port or enable built-in Wi‑Fi. Power the phone via PoE or an external adapter if required. Use the touchscreen to navigate menus and assign functions to the 29 one-touch DSS keys. Pair Bluetooth devices or plug a USB headset into one of the USB ports. If needed, install expansion modules on the side ports to increase programmable keys. Provision the phone centrally using Yealink RPS/boot mechanism or configure manually via the web interface.
Usage recommendations
For best audio experience, use Opus codec when network bandwidth allows and enable QoS on your network. Employ Yealink’s Zero Touch Provisioning (RPS) for mass deployments and keep firmware unified across T4U models for simplified maintenance.

## Specifications

### Display

| Feature | Value |
|---|---|
| Display | LED |
| Touchscreen | Yes |
| Display diagonal | 7 " |
| Display resolution | 800 x 480 |
| Backlight display | Yes |

### Phone features

| Feature | Value |
|---|---|
| Conference call | Yes |
| Phonebook capacity | 1000 entries |
| Caller ID | Yes |
| Call forwarding | Yes |
| Redialing | Yes |
| Call waiting | Yes |
| Call hold | Yes |
| Number of VoIP accounts | 16 |

### Audio

| Feature | Value |
|---|---|
| Speakerphone | Yes |
| Voice codecs | AGC, G.723.1, G.726, G.729ab, VAD, iLBC, G.722, G.711, CNG, AMR-WB, AJB |

### Ports & interfaces

| Feature | Value |
|---|---|
| USB 2.0 ports quantity | 2 |
| Ethernet LAN (RJ-45) ports | 2 |
| Expansion module support | Yes |

### Network

| Feature | Value |
|---|---|
| Security algorithms | TLS, SRTP, HTTPS, AES |
| Ethernet LAN | Yes |
| Bluetooth | Yes |
| Wi-Fi | Yes |
| Ethernet LAN data rates | 1000, 10, 100 |
| Ethernet LAN interface type | Gigabit Ethernet |

### Power

| Feature | Value |
|---|---|
| AC adapter input voltage | 100 - 240 |
| Power over Ethernet (PoE) | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Height | 185 mm |
| Width | 226 mm |
| Depth | 226 mm |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 10 - 95 |
| Operating temperature (T-T) | 0 - 40 |

### Packaging content

| Feature | Value |
|---|---|
| Number of handles included | 1 pc(s) |

### Logistics data

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

### Management features

| Feature | Value |
|---|---|
| Keypad number of keys | 29 |

### Design

| Feature | Value |
|---|---|
| Product colour | Grey |
| Handset type | Wired handset |
| Product type | IP Phone |

## FAQ

### How much does the IP Phone Yealink SIP-T48U cost, and is it available for purchase?

The price is 211.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 203 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 21.07.2026 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: Bank transfer, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can IP Phone Yealink SIP-T48U be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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, touchscreen, speakerphone, bluetooth, ethernet lan, power over ethernet (poe), 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.

### Where can I download the instructions for IP Phone Yealink SIP-T48U?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/3539120/65784918_large.webp