Yealink T48S

Without Power Adapter
The SIP-T48S is Yealink’s most recent innovative IP Phone for a fast-changing world. It incorporates a large touch panel that makes switching between different screens and applications quick, easy, and convenient. Yealink’s Optima HD technology creates the impression that you are sitting face-to-face with the person at the other end of the call. The T48S is also built for the Gigabit Ethernet and facilitates very rapid call handling, Bluetooth and a full-duplex speakerphone. The new IP Phone supports impressive productivity-enhancing features and it’s also compatible with GoToConnect's business VoIP phone system.


  • 16 Lines
  • Power over Ethernet (PoE)
  • Ethernet Pass-Through
  • Full Duplex Speakerphone
  • Category: Executive
  • Manufacturer: Yealink
  • Model: T48S
  • Speakerphone
  • Touchscreen
  • Bluetooth
  • Sidecar

Technical Info


Speakerphone: Full-Duplex

Supported Codecs: G.711(A/μ), G.723, G.729AB, G.726, GSM, Opus

Provisioning Method: HTTP, HTTPS, FTP, TFTP, WEB GUI

Protocol Supported: SIP

Mass Provisioning: Yes

MWI Support: Yes

EHS Support: Yes

Opus Codec Support: Yes

Hearing Aid Compatible (HAC) Handset: Yes


Lines: 16

RJ45 Ports: 2

RJ9 Headset Interface: Yes

Sidecar Compatible: Yes

Desktop Paging: Yes

Gb Ethernet Support: Yes

USB 2.0 Support: Yes


Soft Keys: 4

Voicemail Key: Yes

Hold Key: Yes

Speakerphone Key: Yes

Mute Key: Yes

Headset Key: Yes