Yealink SIP-T48U IP Phone (1301204) | New
SKU: SIP-T48U-N
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Overview of Yealink SIP-T48U IP Phone (1301204) | New
The Yealink SIP-T48U IP Phone (1301204) is business desk phone designed for CEOs and power users that require reliable SIP performance, quick navigation and a professional calling experience. It is a great option for VoIP deployments and contemporary office communications because to its huge 7-inch color touch display, dual USB connections and HD voice technologies. This Yealink T48U IP phone is designed to support up to 16 SIP accounts, dual-port Gigabit Ethernet, PoE and flexible connectivity options like Wi-Fi, Bluetooth, USB headset support and USB recording through compatible accessories. It is also wall-mountable and works with expansion modules, giving businesses a scalable Yealink SIP phone solution that balances convenience, audio quality and professional-grade usability.
Key Features of Yealink SIP-T48U IP Phone
• 7-inch 800 x 480 color touch screen with backlight for easy call handling and menu navigation.
• Supports up to 16 SIP accounts for multi-line business use.
• Dual-port Gigabit Ethernet with PoE support for efficient network connectivity.
• Dual USB ports for headset, Bluetooth, Wi-Fi and USB recording accessories.
• Yealink Optima HD Voice with wideband audio for clear, natural-sounding calls.
• Paperless label design for a cleaner interface and easier button management.
• Supports color-screen expansion modules for additional line and feature access.
• Adjustable two-angle stand and wall-mountable design for flexible placement.
Benefits of Yealink SIP-T48U IP Phone
🗹 Improves productivity with a large touchscreen that reduces menu digging and speeds up everyday call tasks.
🗹 Delivers clearer conversations with HD voice and acoustic enhancement features that support professional call quality.
🗹 Reduces desk clutter by combining Gigabit networking, PoE and accessory support in one business phone.
🗹 Adapts to different work styles with support for headset, Bluetooth, Wi-Fi and expansion modules through USB accessories.
🗹 Helps organizations scale communication needs with multiple SIP accounts and compatibility across many SIP environments.
🗹 Fits executive offices, reception areas and busy teams that need a reliable Yealink business phone with a modern interface.
Specifications
Specifications for Yealink SIP-T48U IP Phone (1301204) | New
| Manufacturer | Yealink |
| Manufacturer Part Number | 1301204 |
| Product Name | Yealink SIP-T48U IP Phone |
| Product Type | IP Phone |
| Target User | Executives and business professionals |
| Display | 7-inch color touch screen with backlight |
| Screen Resolution | 800 x 480 pixels |
| SIP Accounts | Up to 16 SIP accounts |
| Ethernet Ports | Dual-port Gigabit Ethernet |
| Power | PoE support |
| USB Ports | Dual USB ports |
| Audio Technology | Yealink Optima HD Voice |
| Noise Handling | Acoustic Shield and Smart Noise Filtering |
| Speakerphone | Built-in speakerphone |
| Headset Support | Yes |
| EHS Support | Yes |
| Wi-Fi Support | Via WF40 / WF50 USB dongle |
| Bluetooth Support | Via BT40 / BT41 / BT52 USB dongle |
| USB Recording | Supported |
| Expansion Module Support | Color-screen expansion modules supported |
| Firmware | Dual firmware images; T4U firmware unified |
| Provisioning | Yealink RPS and boot mechanism; zero-touch provisioning supported |
| Stand | Two adjustable angles |
| Mounting | Wall mountable |
| Handset | Handset with hall switch |
| Package Contents | SIP-T48U IP phone, handset with handset cord, CAT-5e Ethernet cable, stand, quick start guide |
User Guides
Frequently Asked Questions
Yealink SIP-T48U IP Phone
Frequently Asked Questions (FAQ's)
How many SIP accounts does the Yealink SIP-T48U support?
The SIP-T48U supports up to 16 SIP accounts, making it suitable for users who manage several lines, extensions, departments, or business identities.
What type of display does the phone have?
It features a 7-inch backlit color touchscreen with an 800 x 480-pixel resolution. The touchscreen provides access to calls, directories, settings, applications and programmable keys.
Is the SIP-T48U a touchscreen phone?
Yes. Users can navigate menus, select contacts, manage calls, enter information through an onscreen keyboard and access programmable functions directly from the touchscreen.
Does the phone have built-in Wi-Fi?
No. Wi-Fi is available through a compatible Yealink WF40 or WF50 USB dongle, which is sold separately.
Does the T48U have built-in Bluetooth?
No. Bluetooth functionality requires a compatible Yealink USB Bluetooth adapter, such as the BT40, BT41, or BT52, depending on firmware and accessory compatibility.
Can Wi-Fi and Bluetooth be used at the same time?
Yes. Because the phone has two USB ports, compatible Wi-Fi and Bluetooth dongles can be connected simultaneously. Other dual-accessory combinations may also be possible.
Does the SIP-T48U support Power over Ethernet?
Yes. The phone supports PoE, allowing power and network data to travel through a compatible Ethernet connection. A PoE-enabled switch or injector is required.
Is a power adapter included?
The power adapter is optional and may not be included in the standard package. It is not required when the phone is connected to a compatible PoE source.
Does the phone include Gigabit Ethernet?
Yes. It has dual Gigabit Ethernet ports. One connects the phone to the network, while the second can provide pass-through connectivity to a compatible desktop computer.
Can I connect a headset to the T48U?
Yes. The phone supports compatible wired, USB, Bluetooth, and electronic hook-switch headset configurations. Bluetooth requires a supported USB adapter.
Can the phone record calls?
Yes. Supported calls can be recorded to a compatible USB flash drive connected to one of the phone’s USB ports. Local laws and company policies should be followed when recording conversations.
How many USB ports does the phone have?
The SIP-T48U includes two USB 2.0 ports. They can support compatible Wi-Fi or Bluetooth dongles, USB headsets, USB storage and other approved accessories.
Does it support expansion modules?
Yes. The phone can connect to as many as three compatible Yealink EXP43 color-screen expansion modules.
How many additional keys can expansion modules provide?
Up to three connected expansion modules can provide as many as 180 additional programmable buttons, depending on the configuration.
What is Acoustic Shield technology?
Yealink Acoustic Shield is designed to focus on the speaker’s voice while reducing surrounding conversations and environmental distractions transmitted through the microphone.
What does the Noise Proof feature do?
Noise Proof can suppress intermittent background sounds such as keyboard typing, coughing, paper rustling and objects striking a desk, helping remote participants hear a cleaner voice signal.
Can the SIP-T48U be wall-mounted?
Yes. The phone supports wall installation with a compatible optional Yealink wall-mount bracket. The wall bracket is not normally part of the standard package.
Is the handset hearing aid compatible?
Yes. The SIP-T48U includes a hearing aid compatible handset intended to improve usability for people with compatible hearing aids.
Does the phone require a subscription or VoIP service?
Yes. The phone must be registered to a compatible SIP-based VoIP service, IP PBX, hosted communications platform, or other supported call-control system. Service availability and phone features depend on the provider’s configuration.
Does the SIP-T48U require software to operate?
The phone operates using its internal firmware after it is provisioned for a compatible SIP service. Administrators may configure it through the touchscreen, web interface, provisioning server, or supported device-management platform. Yealink provides firmware and support resources through its current support portal.