Yealink SIP-T48G

16 Line, Dual Gigabit, 7″ Color Touch Screen IP Phone. USB Bluetooth port, 29 DSS Keys

The SIP-T48G, designed for executive use, has a large 7 inch color touch screen providing plenty of real estate for paperless phone management functions and 3PCC applications. Gigabit LAN connectivity and Bluetooth earphones are also supported.

Yealink’s SIP-T48G is the flagship model of the companies T4 IP Phone Series. This 6 SIP Line phone features a large 800×480 pixel backlit Touch Screen color display that makes switching between different screens and applications quick and convenient. Yealink’s Optima HD technology utilizes premium grade audio componentry and the G.722 high definition voice codec for crystal clear telephone calls. The T48G has dual Gigabit Ethernet LAN ports and facilitates rapid call handling, with no network bottlenecks. A Bluetooth USB port enables support for Bluetooth earphones, with wired and wireless Headsets also supported. Perhaps most importantly, the SIP-T48G is designed for paperless operation, with the display screen supporting multi-screen use and 29 one-touch programmable DSS keys.

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.


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• Flagship model for the T4 IP Phone Series
• Yealink Optima HD voice
• Dual port Gigabit Ethernet
• Huge 7″ 800 x 480 pixel TFT touch screen color display with backlight
• Built-in a USB port to support Bluetooth headset (Through USB Dongle)
• Up to 16 SIP accounts
• Paper label free design
• PoE support
• EHS support for Headsets
• Supports EXP40 LCD Expansion Module
• Wall mountable (Optional)
• Power Adapter Optional


Audio Features
HD Optima voice: HD handset, HD speaker
Codecs: G.722, G.711(A/µ), G.723, G.729AB, G.726, GSM
DTMF: In-band, Out-of-band(RFC 2833) and SIP INFO
Full-duplex hands-free speakerphone with AEC
Phone Features
16 VoIP accounts
Call hold, mute, DND
One-touch speed dial, hotline
Call forward, call waiting, call transfer
Group listening, SMS, emergency call
Redial, call return, auto answer
Call history: dialed, received, missed, forwarded
3-way confernecing
Direct IP call without SIP proxy
Ring tone selection/import/delete
Set date time manually or automatically
Dial plan, XML Browser, action URL
Local phonebook up to 1000 entries
BroadSoft contacts: custom, enterprise, personal, common, search, speed dial
IP-PBX and BroadSoft Features
Busy Lamp Field (BLF), BLF list
Bridged Line Apperance(BLA)/SCA
Anonymous call, Anonymous call rejection
DND & forward synchronization
N-Way Calling, remote office
Message Waiting Indicator (MWI)
BroadWorks Anywhere
BroadSoft call center features
Voice mail, call park, call pickup
Intercom, paging, music on hold
Display and Indicator
7″ 800 x 480-pixel color touch screen display with backlight
24-bit depth color
Multi-screen operation
Caller ID with name, number and photo
Feature keys
29 DSS programmable keys for efficient paperless operation
7 features keys: message, headset, hold, mute, transfer, redial, hands-free speakerphone
+/- Rocker volume control key
Dual-port Gigabit Ethernet
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
Power over Ethernet (IEEE 802.3af), Class 3
Other Physical Features
Stand with 2 adjustable angles
Wall mountable
External universal AC adapter (optional):
AC 100~240V input and DC 5V/2A output
Configuration: browser/phone/auto-provision
Auto provision via FTP/TFTP/HTTP/HTTPS for mass deployment
Auto-provision with PnP
BroadSoft device management
Zero-sp-touch, TR-069, SNMP
Provisioning server redundancy supported
Network and Security
SIP v1 (RFC2543), v2 (RFC3261)
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
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


SIP-T48G Datasheet
Yealink IP Phone Comparison Chart


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