This premium phone is for executives and professionals who expect high phone performance and a superior Skype for Business-tailored experience.

With its 7-inch, 800x480-pixel backlit touchscreen and a modern interface, the T48S offers users simple one-click access to Skype for Business features while lowing the learning curve thanks to its familiar and friendly user interface. The SIP-T48S is also with Yealink’s Optima HD Voice technology and SILK speech codec for unparalleled audio clarity. Phone users will think they are sitting in the same room with one another. The T48G provides added flexibility for executives and professionals with its USB Bluetooth connectivity and its ability to switch calls to mobile phones. With the Yealink EXP40 Expansion Module, the phone extends up to 240 contacts.

• Optima HD Voice
• 7" 800 x 480-pixel backlit touch screen
• SILK Speech Codec support
• USB 2.0
• Compatible with Office 365
• Calendar, Boss/Admin support
• Common Area Phone
• Meet Now
• QoE (monitoring reports) support
• Dual-port Gigabit Ethernet
• PoE support
• Bluetooth earhphone via BT40
• Headset, EHS support
• Supports up to 6 expansion modules
• Wall mountable

Audio features

Yealink Optima HD Voice

Full-duplex hands-free speakerphone with AEC

Codecs: SILK, 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

VAD, CNG, AEC, PLC, AJB, AGC

Directory

Contacts synchronize with client

Show favorite contact picture

Support local contacts

Support global search, compatible with exchange

Smart dialing

Call history: placed/received/missed/forwarded

Signing into Skype for Business

Sign in: User Credentials/PIN Authentication

Signing in via BToE

Signing in via phone web interface

Web Sign-in

Auto root certificate fetch

BToE features

Click to call/Click to answer

Audio device switch from IP Phone to PC

Wireless pairing with PC client

As a PC Audio device

Phone features

Presence status synchronize with client

Reset presence status, Privacy mode

Phone lock

Favorite contacts sorting

Favorite contacts click to call

Call hold, call waiting, call merge, redial, mute

Branch office support

Call forward, call transfer, call park

SFB conferencing (Microsoft CCCP)

Boss/Admin function

Common Area Phone (CAP)

Calendar support

Ring tones, hotline, music on hold

Private line

Hot-desking, paging, dial plan, group call pickup

E911, Multiple Emergence Number,

Federation, response group

Visual voicemail, message waiting indicator (MWI)

Volume adjustment

USB port (2.0 compliant):

 - Bluetooth earphone through BT40,

 - Contact synchronization through BT40,

 - Wi-Fi through WF40 (pending),

 - USB call recording through USB flash drive (pending)

Interface

Dual-port Gigabit Ethernet

Power over Ethernet (IEEE 802.3af) , class 0

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

Display and indicator

7" 800 x 480-pixel touch screen with backlight

24 bit depth color

Modern Skype for Business interface, Full keyboard

LED for call and message waiting indication

Multilingual user interface

Caller ID with name, number, picture

Presence status control: available, busy, DND, be right back, off work, appear away

Network and security

SIP v1 (RFC2543), v2 (RFC3261)

LLDP-MED VLAN assignment

IPv4/IPv6

Proxy mode and peer-to-peer SIP link mode

IP Assignment: Static/DHCP/PPPoE

DNS 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)

EWS authentication

HTTPS certificate manager

Digest authentication using MD5/MD5-sess

IEEE802.1X

Management

Configuration: browser/phone/Auto provisioning

Yealink Redirection and Provisioning Service (RPS)

Auto Provisioning via Activation Code

In-band provisioning

In-Band Configuration Management

QoE (Monitoring Reports)

Single identity (active directory)

Media Bypass, Firewall Traversal

Reset to factory, reboot

Package tracing export, system log

Screenshot via URL

Phone log click to upload

View license status

UnifySquare Device Management

Other physical features

External Yealink AC adapter (optional): AC 100~240V input and DC 5V/2A Output

Power consumption (PSU): 2.0-6.4W

Power consumption (PoE): 2.4-7.3W

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

Operating humidity: 10~95%

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

Package features

Package content:

- Yealink T48S Skype for Business 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