SIP-T48G

The SIP-T48G is Yealink’s most recent innovative IP Phone for a fast-changing world. Designed specifically for both local and international use by business, industry and commerce, it incorporates a large touch panel that makes switching between different screens and applications swift, easy and convenient. Yealink’s Optima HD technology very carefully creates the impression that you are sitting virtually face-to-face opposite the person at the other end of the call. The T48G is also built for the Gigabit Ethernet and facilitates very rapid call handling and the application of accessories such as a Bluetooth USB Dongle, plus wired and wireless headsets. The new IP Phone supports impressive productivity-enhancing features too which make it the natural and obvious efficiency tool for today’s busy executives and professionals.

  • Revolutionariy new design
  • Yealink Optima HD voice
  • Dual-port Gigabit Ethernet
  • PoE support
  • 7" 800 x 480-pixel color touch screen with backlight
  • Support Bluetooth headset through USB Dongle
  • Up to 6 SIP accounts
  • Paper label free design
  • Headset, EHS support
  • Supports expansion modules
  • Wall mountable
  • Simple, flexible and secure provisioning options
Phone Features

6 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
3-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

Audio Features

HD voice: HD handset, HD speaker
Codecs: 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
Intelligent search method
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
Remote office, hot-desking
Message Waiting Indicator (MWI)
Voice mail,call park, call pickup
Intercom, paging, music on hold
Call completion, call recording

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

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
National language selection
Caller ID with name, number and photo

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
Built-in a USB port, support Bluetooth headset (Through USB Dongle)
1xRJ9 (4P4C) handset port
1xRJ9 (4P4C) headset port
1XRJ12 (6P6C) EXT port
Supports up to 6 Expansion Modules for an attendant console application

Other Physical Features

Wall mountable (optional)
External universal AC adapter (optional): AC 100~240V input and DC 5V/2A output
Power consumption (PSU): 2.0-6.4W
Power consumption (PoE):2.4-10.5W
Dimension(W*D*H*T): 266mm*226mm*185mm*54mm
Operating humidity: 10~95%
Storage temperature: -10~50°C

Network and Security

SIP v1 (RFC2543), v2 (RFC3261)
Call server redundancy supported
NAT transverse: STUN mode
Proxy mode and peer-to-peer SIP link mode
IP assignment: static/DHCP/PPPoE
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 using MD5/MD5-sess
OpenVPN, IEEE802.1X
IPv6

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