Yealink T48S

Equipped with a huge 7-inch colour touch screen, the T48 S adds another dimension to the handling of calls and monitoring. Thanks to its screen, you can easily view and manage 29 lines at the same time. And with HD sound, the possibility of adding six expansion modules makes it ideal for demanding executives and professions. It is equipped with Gigabit Ethernet ports.

For more details:
Data sheet

HD Sound

The T48 S features Yealink Otima HD Voice technology based on broadband frequency response, which is found on both the handset and the speakerphone for clear, noise-free sound.

Extraordinary screen

Its 7-inch colour touch screen makes all the difference. You can easily view your contacts, call logs, and perform your usual operations in the blink of an eye. In addition, it is possible to display up to 29 lines in monitoring at the same time, thus optimizing your communications.

Simplify your installation

To simplify your installation, the Yealink T48 S has two Gigabit Ethernet ports. A PC and the phone only consume one network socket. It can also be self-powered(PoE) to save a bulky cable and power supply. It also has an RJ9 port so it can be used with a headset.

Call volume

With a capacity of up to 29 monitoring keys on a single screen, this workstation will prove to be a powerful tool. Combined with a huge colour touch screen, it adds another dimension to call processing tasks.

Add-on module

The T48S supports up to six expansion modules for up to 240 additional buttons with an LCD display and indicator light system.
In addition, it offers three key pages that can be programmed with up to 27 function keys.

Data sheet

Function key

Up to 16 line keys
Up to 29 native monitoring keys
7 function keys: message, headset, silent mode, auto redial, hands-free speakerphone, put on hold, call transfer
4 context-sensitive keys
6 navigation keys
2 volume control keys
Illuminated mute mode key
Illuminated headset key
Illuminated hands-free speakerphone key

Audio codecs

Broadband: G.722
Narrowband: G.711 / G.729a
Dual-Tone Multi-Frequency (DTMF): In-band, Out-of-band (RFC 2833) and SIPINFO
Full-duplex Acoustic Echo Compensator (AEC) speaker


One-touch dialing and quick redial
Call forwarding, call in wait
Call transfer, put call in wait
Callback, group listening
Discretionary mode, automatic response
Do Not Disturb (DND)
3-way conferencing
1 USB port
- Bluetooth support via BT40
- Call recording on USB
Anonymous calling, anonymous call rejection
Shared office, voicemail
Visual voicemail
Call recording
Wallpaper and screen saver
User interface


Local directory with up to 1000 entries
Remote Directory XML/LDAP
Smart Dialing
Directory search/import/export
Call history: dialed/received/missed/transferred

Display & Indicator

7-inch, 800 x 480 pixel, backlit color display screen
Message and call waiting indicator light
Two-colour (red and green) LEDs for line status information
Intuitive user interface with icons and programmable keys


2 Gigabit Ethernet ports
POE Power over Ethernet (IEEE 802.3af), Class 3
1 USB port (2.0 compliant)
1 RJ9 handset port (4P4C)
1 RJ9 headset port (4P4C)
1 EHS RJ12 port (6P6C)