Description
The Yealink SIP-T48U is a 16-line open SIP desk phone with a 7-inch 800 x 480 color touch screen, aimed at executives and professionals who want quick on-screen navigation and caller photos. It shares the SIP-T46U's dual USB ports, optional Wi-Fi and Bluetooth dongles and 10-way conferencing, but swaps physical line keys for 29 one-touch DSS keys on the touch screen; if you want Wi-Fi and Bluetooth built in, see the SIP-T57W. It works with standard SIP phone services, so check that your provider supports Yealink SIP phones before ordering.
Key features
- 7-inch color touch screen: An 800 x 480-pixel backlit touch screen with 24-bit color makes switching between pages and apps quick, and shows caller ID with name, number and photo.
- 29 one-touch DSS keys: Program 29 on-screen keys for speed dials, line appearances or busy lamp field, with no paper labels to print, across up to 16 SIP accounts.
- Dual USB ports, add what you need: Two USB 2.0 ports take Wi-Fi via WF40/WF50, Bluetooth via BT40/BT41/BT52, a USB headset, USB call recording, the EXP43 module or the EHS40 adapter, and you can use any two at once.
- Built for heavy call volume: 10-way conferencing and up to three color-screen expansion modules for up to 180 additional buttons.
- Optima HD Voice with Acoustic Shield: Yealink Optima HD Voice and G.722 wideband audio, with Acoustic Shield and Smart Noise Filtering to block background noise so callers hear you, not the office. The handset is hearing aid compatible (HAC).
- Gigabit with PoE: Dual-port Gigabit Ethernet with IEEE 802.3af Class 3 PoE.
- Simple, protected rollouts: Zero touch provisioning via Yealink RPS, unified T4U firmware and auto-provisioning templates, and dual firmware images that guard against a failed upgrade.
Choose your power option: the PoE version runs from a Power over Ethernet switch and has no power supply in the box. Choose "With power supply" if your switch does not provide PoE (adds the Yealink 5V/2A power adapter).
Specifications
| Display | 7-inch 800 x 480-pixel color touch screen with backlight, 24-bit color |
|---|---|
| Line keys / accounts | 29 one-touch DSS keys; 16 SIP accounts |
| Feature keys | 7 feature keys: message, headset, hold, mute, transfer, redial, hands-free speakerphone |
| Network | Dual-port Gigabit Ethernet |
| PoE | IEEE 802.3af, Class 3 |
| Power | PoE or optional Yealink adapter (DC 5V/2A output) |
| Wi-Fi | Optional via Yealink WF40/WF50 USB dongle |
| Bluetooth | Optional via Yealink BT40/BT41/BT52 USB dongle |
| USB | 2 x USB 2.0 |
| Headset support | RJ9 (4P4C) headset port; USB headsets; Bluetooth headsets via dongle; Yealink WH62/WH63 Portable DECT headsets; EHS40 adapter |
| Audio | Optima HD Voice; HD handset and speaker; HAC handset; Acoustic Shield; Smart Noise Filtering; G.722 (AMR-WB optional) |
| Conferencing | 10-way conferencing |
| Expansion modules | Yealink EXP43, up to 3 modules (up to 180 additional buttons) |
| Mounting | Stand with 2 adjustable angles; wall mountable (optional) |
| Part numbers | SIP-T48U (PoE (no power supply)); SIP-T48U-WITHPS (With power supply) |
In the box
Yealink SIP-T48U IP phone; Handset with handset cord; Ethernet cable (2 m CAT5E UTP); Stand; Quick Start Guide; plus the Yealink power adapter with the "With power supply" option
Download the Yealink T48U datasheet (PDF)
Not sure which phone fits your phone service? Talk to an Advisor.
Part numbers and specs
| Version | Part number | UPC |
|---|---|---|
| PoE (no power supply) | SIP-T48U | 841885102997 |
| With power supply | SIP-T48U-WITHPS |
Specs
| Screen | 7 in color touch, 800 x 480 |
|---|---|
| SIP accounts and keys | Up to 16 SIP accounts; 29 DSS keys |
| Wi-Fi | Via Yealink WF40 or WF50 USB dongle |
| Bluetooth | Via a Yealink USB dongle |
| Ethernet and PoE | 2 x Gigabit; PoE 802.3af |
| USB | 2 x USB 2.0 |
| Headset port and EHS | RJ9; USB headsets; EHS via Yealink EHS40 |
| Expansion modules | Up to 3 EXP43 |
Specs are Yealink's, from its current data sheets. "None listed" means the data sheet names no such feature. Yealink uses SIP accounts and VoIP accounts to mean the same thing. Yealink lists the power adapter as optional on most models, so check that your switch has PoE or choose With power supply. Compare all T Series models
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