Yealink SIP- T48U Business IP Phone 7 Inch Backlit Color Touchscreen

Yealink presents a dynamic business communication solution to executives and professionals with the new SIP-T48U IP phone. The phone employs and appealing large touch screen that makes the switch between pages and applications swift, easy and convenient.

Easy Customization and High Expansibility<:
The SIP-T48U has a seven-inch, 800 x 480-pixel, backlit- color touch screen, which enables a rich visual presentation and easy navigation. Accompanied by two USB ports, the T48U is your
right-hand man in the office that makes Bluetooth, Wi-Fi, USB headset and USB recording possible, and you can use any two of them freely according to your needs to enrich phone features.

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

Efficient Installation and Provisioning:
Yealink T4U series supports efficient provisioning and effortless mass deployment with Yealink’s Redirection and Provisioning Service (RPS) and Boot mechanism to help you realize the Zero Touch Provisioning without any complex manual settings, which makes the T4U series simple to deploy, easy to maintain and upgrade.

Secure Transport and Interoperability:
The SIP-T48U uses SIP over Transport Layer Security (TLS/SSL), which is the latest network security technology. It’s also compatible with leading soft switch suppliers, such as 3CX, Broadsoft Broadworks.

Audio Features

• HD voice: HD handset, HD speaker
• Hearing aid compatible (HAC) handset
• Acoustic Shield
• 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

Directory

• Local phonebook up to 1000 entries
• Black list
• XML/LDAP remote phonebook
• Smart dialing
• Phonebook search/import/export
• Call history: dialed/received/missed/forwarded

IP-PBX Features

• Busy Lamp Field (BLF), Bridged Line Apperance (BLA)
• Anonymous call, anonymous call rejection
• Hot-desking, voice mail
• Flexible seating, Executive and Assistant
• Call park, call pickup
• Centralized call recording, call recording
• Visual voice mail

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

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

Management

• Configuration: browser/phone/auto-provision
• Auto provision via FTP/TFTP/HTTP/HTTPS for mass deploy
• Auto-provision with PnP
• Zero-sp-touch, TR-069
• Phone lock for personal privacy protection
• Reset to factory, reboot
• Package tracing export, system log

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

Physical

• Color: Classic Grey
• Wall mountable (optional)
• External Yealink AC adapter (optional): AC 100~240V input and DC 5V/2A output

USB output currency: 5V 1A

• Power consumption (PSU): 1.8-3.8W
• Power consumption (PoE): 2.3-4.7W
• Operating humidity: 10~95%
• Operating temperature: 0~40°C
• Dimension (WxDxHxT): 266 x 226 x 185 x 54 mm