Yealink T48S LCD Display Wired Handset IP Desk Phone

Yealink T48S LCD Display Wired Handset IP Desk Phone

The Yealink T48S is a high‑performance, wired desk phone designed for modern business environments that require reliable voice communication and advanced features. With its 7‑inch color touch display, robust networking capabilities, and support for up to sixteen VoIP accounts, this device delivers crystal‑clear audio and intuitive usability.

Key Design Features

• Display: 7" (800 × 480 pixels) full‑color touch screen that offers a responsive interface for call management, directory lookup, and configuration settings.
• Form Factor: Sleek black chassis with a depth of 225 mm and width of 263 mm, making it suitable for both desk and wall mounting. The handset is wired, ensuring stable connectivity without the need for wireless power.
• Handset: Cable‑connected headset with a single button for call control, providing clear audio via HD voice codecs.

Networking & Connectivity

• Ethernet Ports: Two Gigabit RJ‑45 ports (IEEE 802.3af PoE) support high‑speed data transfer at 10/100/1000 Mbps, enabling seamless integration with existing LAN infrastructure.
• Power Over Ethernet: Built‑in PoE support eliminates the need for separate power supplies, simplifying deployment and reducing cable clutter.
• USB Interface: One USB 2.0 port allows connection of peripheral devices such as a Bluetooth dongle or external storage for firmware updates.

Voice & Audio Capabilities

• Codecs Supported: CNG, G.711Mu, G.711a, G.722, G.723.1, G.726, G.729ab, VAD, iLBC – ensuring compatibility with a wide range of VoIP systems and delivering high‑definition audio quality.
• HD Voice: The phone’s advanced codec selection guarantees clear, natural sound for both inbound and outbound calls.

Call Management & Features

• VoIP Accounts: Supports up to 16 simultaneous accounts, allowing users to manage multiple lines from a single device.
• Conference Calling: Built‑in three‑way conferencing enables collaborative discussions without the need for additional hardware.
• Call Transfer & Hold: Full duplex operation with call transfer and hold functions ensures efficient call handling during busy periods.
• Directory Capacity: Stores up to 1,000 entries in its internal address book, facilitating quick access to contacts.
• Call Logging: Automatic recording of recent calls provides a convenient history for reference and compliance purposes.

Security & Protocol Support

• Encryption Algorithms: Supports AES encryption, safeguarding voice traffic against eavesdropping.
• Network Protocols: Compatible with SIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, and HTTPS, ensuring seamless integration into diverse network environments.
• Quality of Service (QoS): QoS support prioritizes voice traffic over other data types, maintaining call quality even on congested networks.

Environmental & Power Specifications

• Operating Temperature: -10 °C to 50 °C – suitable for a wide range of office settings.
Humidity Range: 10 %–95 % relative humidity, ensuring reliable performance in varying environmental conditions. Power Input: 100–240 V AC; Output: 5 V DC via PoE.

User Interface & Accessibility

• Keyboard Layout: 42 keys, including a dedicated button for quick access to the handset and call functions.
• Touchscreen Interaction: Intuitive touch controls allow users to navigate menus, dial numbers, and manage contacts with ease.
• Multifrequency Dialing: Supports in‑band, out‑of‑band, and SIP information tones for versatile dialing options.

Installation & Deployment

• Mounting Options: Designed for desk or wall mounting, the phone can be positioned to fit seamlessly into any office layout.
Setup Process: Quick configuration via the touch display and built‑in wizard guides users through network settings, account registration, and feature activation.

Summary

The Yealink T48S LCD Display Wired Handset IP Desk Phone combines a robust set of features with an elegant design. Its support for multiple VoIP accounts, advanced codecs, PoE connectivity, and comprehensive security protocols make it an ideal choice for businesses seeking reliable, high‑quality voice communication without the complexity of wireless systems.

With its extensive feature set and user‑friendly interface, the T48S stands out as a versatile solution that adapts to both small offices and larger enterprise environments, ensuring clear, secure, and efficient communication for all users.