Yealink SIP‑T54S – 16‑Line Gigabit Media IP Phone with Bluetooth, USB & HD Audio

Yealink SIP‑T54S – Specifications

General / Core Info

• Model: SIP‑T54S

• Type: Business‑class Media IP Phone (desktop)

• Supported SIP accounts: up to 16

• Display: 4.3‑inch color LCD, 480 × 272 pixels, backlit

• Built-in Bluetooth (for headset or mobile contact sync)

• Built-in USB 2.0 port (for USB headset, USB recording, or accessories)

• Dual-port Gigabit Ethernet (LAN + pass-through)

• Power over Ethernet (PoE) support

• Optional expansion: supports up to 3 color‑screen expansion modules

Audio & Voice Features

• HD voice: HD handset + HD speaker

• Hearing‑aid compatible (HAC) handset

• Speakerphone: full‑duplex with Acoustic Echo Cancellation (AEC)

• Supported audio codecs: Opus, G.722, G.711 (A/µ), G.723, G.726, G.729AB, iLBC

• DTMF support: In‑band, RFC 2833, SIP INFO

• Voice processing: VAD, CNG, PLC, noise reduction / voice enhancement

Phone / Call Features

• Call functions: hold, mute, Do Not Disturb (DND)

• Call transfer, call forward, call waiting

• One‑touch speed dial / hotline / redial / auto answer / direct IP call

• Call history (dialed / received / missed / forwarded)

• Local phonebook (up to 1000 entries), remote phonebook via XML/LDAP

• Blacklist, smart‑dial, import/export phonebook

• Busy Lamp Field (BLF) and Bridged Line Appearance (BLA) support

• Call pick-up, call parking, call recording (via USB), call park/pick‑up

• Hot‑desking / flexible seating, voicemail support, call logging

Interface & Connectivity

• 2 × RJ45 Gigabit Ethernet ports

• 1 × USB 2.0 port

• RJ9 handset port + RJ9 headset port

• Supports optional Wi‑Fi (via external dongle)

• Compatible with wired or wireless headsets via Bluetooth or USB

Display & User Interface

• Color screen 4.3″ with backlight

• LED indicators for call / message waiting, line‑status LEDs (multi‑color)

• Programmable line/feature keys: 10 line keys, plus soft‑keys, navigation keys, function keys (hold, mute, transfer, headset, speaker‑phone etc.)

• Multi‑page programmable keys, supports expansion modules — good for busy phone lines

Power & Physical / Environment

• Supports PoE (IEEE 802.3af) for simplified installation

• Alternate power via external adapter if needed

• Adjustable phone stand; wall‑mountable option

• Designed for typical office environments