Yealink IP Phone T48S

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Yealink IP Phone T48S

The SIP-T48S IP Phone is a dynamic business communications solution for executives and professionals. This phone offers a large touch screen that makes switching between pages and applications swift, easy and convenient. The SIP-T48S is also with Yealink’s Optima HD Voice technology and wide band codec of Opus for unparalleled audio clarity. Phone users will think they are sitting in the same room with one another. The phone uses Gigabit Ethernet technology for rapid call handling. Plus, it works in conjunction with Bluetooth USB Dongle and Wi-Fi USB Dongle. The new T4S series offers the same elegant appearance of the T4 line, but with improvements for greater interoperability and collaboration.

  • Audio Features
    > HD voice: HD handset, HD speaker
    > Hearing aid compatible (HAC) handset
    > 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
  • 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)
    > USB port (2.0 compliant) for:
    Bluetooth earphone through BT40,
    Contact synchronization through BT40,
    Wi-Fi through WF40,
    USB call recording through USB flash drive
    > 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
    > Call park, call pickup
    > Executive and Assistant
    > Centralized call recording
    > Visual voice mail
    > 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
    > 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
    > 1 x USB port (2.0 compliant)
    > 1 x RJ9 (4P4C) handset port
    > 1 x RJ9 (4P4C) headset port
    > 1 x RJ12 (6P6C) EXT port:
    Supports up to 6 Expansion Modules for an attendant
    console application
  • Other Physical Features
    > Color: Classic Grey
    > Wall mountable (optional)
    > External Yealink AC adapter (optional):
    AC 100~240V input and DC 5V/2A output
    > Power consumption (PSU): 2.2-4.9W
    > Power consumption (PoE): 3.2-7.5W
    > Dimension (W*D*H*T):
    266mm*226mm*185mm*54mm
    > Operating humidity: 10~95%
    > Operating temperature: -10~50°C (+14~122°F)
  • 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/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
    > OpenVPN, IEEE802.1X
    > IPv6
    > LLDP/CDP/DHCP VLAN
    > ICE
  • Package Features
    > Package content:
    - Yealink SIP-T48S IP phone
    - Handset with handset cord
    - Ethernet Cable (2m CAT5E FTP Cable)
    - Stand
    - Quick Start Guide
    - Power Adapter (Optional)
    - Wall Mount Bracket (Optional)
    > Qty/CTN: 5 PCS
    > N.W/CTN: 8.2 kg
    > G.W/CTN: 9.0 kg
    > Giftbox size: 324mm*263mm*128mm
    > Carton Meas: 660mm*338mm*273mm

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