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

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

Feature keys

> 29 one-touch DSS keys

> 7 features keys: message, headset, hold, mute,

transfer, redial, hands-free speakerphone

> 6 navigation keys

> Volume control keys

> Illuminated mute key

> Illuminated headset key

> Illuminated hands-free speakerphone 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

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

Other Physical Features

> Color: Classic Grey

> USB output currency: 5V 1A

> Power consumption (PSU): 1.8-3.8W

> Power consumption (PoE): 2.3-4.7W

> Dimension (W*D*H*T): 266mm*226mm*185mm*54mm

> Operating humidity: 10~95%

> Operating temperature: -10~50°C (+14~122°F)

Package Features

> Package content:

 - Yealink SIP-T48U IP phone

 - Handset with handset cord

 - Ethernet Cable (2m CAT5E UTP   Cable)

 - Stand

 - Quick Start Guide

> Qty/CTN: 5 PCS

> N.W/CTN: 7.9 kg

> G.W/CTN: 8.4 kg

> Giftbox size: 324mm*263mm*128mm

> Carton Meas: 660mm*338mm*273mm