Yealink SIP-T48U IP Phone Grey LED Wi-Fi 1301204

Yealink SIP-T48U IP Phone Grey LED Wi-Fi 1301204

Sound and Hear with Remarkable Clarity

Yealink Optima HD Voice technology combines cutting-edge hardware and software with wideband technology for maximum acoustic performance. 

Efficient Deployment and Management

Yealink T4U series supports effortless mass deployment and Zero Touch Provisioning with Yealink's Redirection and Provisioning Service (RPS) and Boot mechanism, making the device management labor-saving and efficient for the administrators.

Color-screen Expansion Module EXP43

The 4.3-inch color screen expansion module is designed to offer advanced call handling capabilities with its simplified UI and up to 60 programmable keys for various features.

Yealink Wireless/Wired USB Headsets

Seamlessly compatible with Yealink wireless/wired USB headsets to meet the needs of users with large call volumes or headset preference and ideal for call center or administrative assistants.

BUILD YOUR UNCRACKABLE

PHONE SECURITY

The T48U is shielded with the latest security mechanisms, making your conversations more secure than ever. With TLS 1.3, you benefit from faster and more robust encryption.  Learn more enhanced security features in the V87 upgrade.

User Interface Features - 7" color touch screen with backlight
Audio Features - Optima HD voice with Acoustic Shield and Smart Noise Filtering
Basic Features - Up to 16 SIP accounts, PoE support , Stand with two adjustable angles, wall mountable
Advanced Features - Wi-Fi via WF40/WF50, Bluetooth via BT41, Support expansion modules, Support USB recording
Connectivity - Dual USB ports, dual-port Gigabit Ethernet, Headset, EHS support

Specifications:

Audio Features:

• HD voice: HD handset, HD speaker
• Hearing aid compatible (HAC) handset
• Acoustic Shield
• Smart Noise Filtering
• Codecs: AMR-WB (optional), AMR-NB (optional), Opus, G.722, G.711(A/µ), G.723.1, G.729AB, G.726, iLBC
• DTMF: In-band, Out-of-band (RFC 2833) and SIP INFO
• Full-duplex hands-free speakerphone with AEC
• VAD, CNG, AEC, PLC, AJB, AGC

Display and Indicator:

• 7" 800 x 480-pixel color touch screen with backlight
• 24 bit depth color
• LED for call and message waiting indication
• Wallpaper
• Intuitive user interface with icons and soft keys
• Multilingual user interface
• Caller ID with name, number and photo
• Screensaver
• Power saving

Phone Features:

• 16 VoIP accounts
• Call hold, mute, DND
• One-touch speed dial, hotline
• Call forward, call waiting, call transfer
• Group listening
• Emergency call
• Redial, call return, auto answer
• 10-way conferencing
• Direct IP call without SIP proxy
• Ring tone selection/import/delete
• Set date time manually or automatically
• Dial plan, XML Browser, action URL/URI
• RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
• USB port (2.0 compliant) for: - Bluetooth earphone through BT40/BT41 - Contact synchronization through BT40/BT41 - Simultaneous connection of one headset and one mobile phone through BT40/BT41 - Wi-Fi through WF40/WF50 - USB call recording through USB flash drive - USB headset - Expansion Module EXP43 - Wireless Headset Adapter EHS40
• USB/Bluetooth connectivity to Yealink CP900/CP700 speakerphone, USB connectivity to Yealink UH36 headset: - Basic functions: Answer / end, call mute - Enhanced function: audio optimization, redial, call hold, volume synchronization, multiple calls control
• Enhanced DSS key

Interface:

• Dual-port Gigabit Ethernet
• Power over Ethernet (IEEE 802.3af), class 3
• 2 x USB port (2.0 compliant)
• 1 x RJ9 (4P4C) handset port
• 1 x RJ9 (4P4C) headset port

Network and Security:

• SIP v1 (RFC2543), v2 (RFC3261)
• Call server redundancy supported
• NAT traversal: STUN mode
• Proxy mode and peer-to-peer SIP link mode
• IP assignment: static/DHCP
• HTTP/HTTPS web server
• Time and date synchronization using SNTP
• UDP/TCP/DNS-SRV(RFC 3263)
• QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS DSCP
• SRTP for voice
• Transport Layer Security (TLS)
• HTTPS certificate manager
• AES encryption for configuration file
• Digest authentication
•  OpenVPN, IEEE802.1X
• IPv6
• LLDP/CDP/DHCP VLAN
• ICE