Novi Yealink SIP-T48S IP Phone predstavlja zamenu za SIP-T48G, donosi brojne novine i poboljšanja u odnosu na prethodnika. Predstavlja dinamično rešenje za poslovne komunikacije koje će najbolje iskoristiti potrebe rukovodećeg kadra. Ovaj telefon nudi veliki ekran osetljiv na dodir, čime je prebacivanje između različitih stranica i aplikacija brzo i jednostavno. Za vrhunski kvalitet zvuka brine se Yealink Optima HD Voice tehnologija i implementacija širokopojasnog Opus codec-a, a korisnicima će se činiti kao da sede u istoj prostoriji sa sagovornikom. Dodatne opcije poput Gigabit Etherneta, mogućnost spajanja Bluetooth uređaja putem BT40 modula ili spajanja na bežičnu mrežu uz dodatak WF40 modula, samo je deo od brojnih mogućnosti koje ovaj telefon nudi.

• 7" 800 x 480 ekran u boji osetljiv na dodir
• Podrška za Opus codec
• USB 2.0
• Unificirani T4S Auto-P template
• Unificirani T4S firmware
• Do 16 SIP naloga
• Dva Gigabit Ethernet porta
• PoE
• Dizajn bez korišćenja papirnih oznaka
• Podrška za EHS i naglavne slušalice
• Wi-Fi uz WF40
• Bluetooth uz BT40
• USB snimanje
• Podržava dodatne konzole EXP40
• Postolje s dva ugla nagiba
• Mogućnost montaže na zid (uz dodatni nosač)

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

Audio Features

HD voice: HD handset, HD speaker

Codecs: 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

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

Directory

Local phonebook up to 1000 entries

Black list

XML/LDAP remote phonebook

Intelligent search method

Phonebook search/import/export

Call history: dialed/received/missed/forwarded

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

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

Interface

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

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