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Yealink SIP-T48S Ultra-Elegant Gigabit Color - IP Phone


New product

Yealink SIP-T48S Ultra-Elegant Gigabit Color IP Phone - The new design includes a colour display 7" 800 x 480-pixel touch screen with backlight providing a rich-visual experience.

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5 Items

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303,00 €

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Data sheet

Product TypeDeskphone
Connection TypeSIP
SIP Accounts16
Video CallNO
Touch screenYES
Ethernet PortGigabit
Audio Conference3 Way

More info

The SIP-T48S is Yealink's latest revolutionary IP telephony device for demanding users and busy professionals.

Yealink's Optima HD technology enables rich and clear communication. It supports Gigabit Ethernet, a variety of connection ports, including EHS headphones and USB. With programmable keys, the IP phone supports many features that improve productivity.


  •  Revolutionarily new design 
  •  Yealink Optima HD voice 
  •  Dual-port Gigabit Ethernet
  •  PoE(802.3af) class support
  •  7" 800 x 480-pixel color touch screen with backlight
  •  Support Bluetooth headset through USB Dongle
  •  Up to 16 SIP accounts
  •  Paper label free design 
  •  Headset, EHS support
  •  Supports expansion modules
  •  Wall mountable
  •  Simple, flexible and secure provisioning options
  • 1 year warranty


Audio Features

  •  HD voice: HD handset, HD speaker
  •  Codecs: G.722, G.711(A/μ), G.723.1, G.729AB, G.726, GSM, iLBC
  •  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, 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 RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)



  •  Loal 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


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



  •  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%
  •  Operating temperature: -10~50°C



  •  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 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


Package Features

  •  Qty/CTN: 5 PCS
  •  N.W/CTN: 
  •  G.W/CTN: 
  •  Giftbox size: 324mm*263mm*128mm
  •  Carton Meas: 660mm*338mm*273mm

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