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T48S Skype for Business Edition Executive HD IP Phone

Yealink T48S Skype for Business Gigabit SIP telephone


The SIP-T48S SFB is Yealink's premier Skype for Business phone designed for executives and professionals who expect high performance functionality and superior build quality.

Its 7-inch touchscreen panel offers a modern user interface with simple one-touch access to Skype for Business features - improving user adoption thanks to its familiar and friendly user interface.

Add the Yealink EXP40 Expansion Module (available separately) and the phone extends up to 240 contacts, giving any executive front desk the capabilities to handle multiple calls efficiently.


Optimised for Skype for Business online, on-premises, and hybrid deployment

Compatible with Office 365

7" 800 x 480-pixel backlit touchscreen panel

Optima HD Voice technology delivers maximum acoustic performance

Pin, arrange, and call favourite contacts directly on the home screen

Synchronise Outlook Calendar meeting schedules in real-time

Dual-port Gigabit Ethernet

Bluetooth earphone with extra BT40 Dongle



BT40 Bluetooth Dongle provides functionality for Bluetooth headsets

EXP40 Expansion Module adds 40 more feature keys (2 pages of 20). Up to 6 expansion modules can be added.

EHS36 Electronic Hookswitch Adaptor enables support for Plantronics, Jabra and Sennheiser DECT cordless headsets

YHS32 Headset lightweight over the-head monaural headset

WF40 Wi-Fi USB Dongle provides wireless connectivity for the T48G

Wall mountable bracket T48WM


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 


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) 


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


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)