Yealink SIP-T48S 16-Line Ultra-Elegant Gigabit IP Phone- PoE

Yealink SIP-T48S IP Phone:

Yealink T48S with Opus support brings the same elegant look and feel of the previous T4 Series models, but with the added bonus of enhanced performance at no added cost. With key upgrades such as Opus support and enhanced speaker performance, the new T4S series are a powerful work tool.

Yealink SIP-T48S IP Phone Overview:

The T4S Series brings power to the table with the popular Opus HD audio codec that is an advantage in the carrier/ITSP market. The T4S Series are future proof with higher hardware support that brings the latest hardware components to allow the phone to support future firmware generations. That way as Yealink continues to add more powerful features to the phone's firmware, you'll be able to keep up, worry free. The firmware for the T4S series allows for a unified firmware across all models ( T41S, T42S, T46S, T48S) for easier and more convenient management and provisioning

In addition, the T4S brings a faster user interface with high performance and a faster response rate. The T4S Series has an improved speakerphone and it is also hearing aid compatible (HAC) so that a person with hearing loss can hear more clearly.

The T4S Series brings major improvements at the same price of the existing T4 Series, that's a win-win.

Yealink SIP-T48S IP Phone Features and Specifications:

Audio Features

4 VoIP accounts18 one-touch soft keys BLF/DSS keysDial/answer selection (video or voicecall), Call forward, Call waiting, Calltransfer, Call hold, Call manager, Mute,Redial, Auto answer, DND, Caller IDdisplay, Call history, Voice mail,Message waiting indicator (MWI)Dial number or URL via SIP serverLocal and remote phonebooks, LDAP,Black list, GroupXML central phonebookVolume control,Ring tone selection/importWallpaper, Screensaver and sleepVideo/photo/wallpaper managerManual and automatic date/time settingNational language selectionMulti-desktop, Icon-driven menuStatistics when talkingPaging/Intercom*Action URI/URLVoice FeaturesHD voice: HD codec, HD handset, HDspeakerWideband codec: G.722Narrowband codec: G.711, G.723.1,G.729AB, G.726Full-duplex handsfree speakerphonewith AECVAD, CNG, PLC, AJB, AGCVideo Features7” digital TFT-LCD with 800x480 pixelsresolutionRotatable CMOS sensor camera with 2Mpixels, Video codec: H.264 and H.263Image codec: JPEG, PNG, BMPVideo format: up to D1 (720x480)@30fpsVideo call output resolution: VGAand CIF, Bandwidth selection:128kbps~1MbpsAdaptive bandwidth adjustmentI-frame adjustable, Local video controlPicture-in-Picture (PIP), Full screenTV output with PAL/NTSC formatO ine advertisement when idle*IP camera support including pan & tiltVideo doorphone integration3-party video conferenceNetwork & Security FeaturesSIP v1 (RFC2543), v2 (RFC3261)NAT Traversal: STUN modeIn-band, Out-of band (RFC2833)and SIP INFO DTMFProxy mode and peer-to-peer SIP linkmode, IP Assignment: Static/DHCP/PPPoE, SNTPAuto-provision via http, https, PnP, ftp,tftp, TR069VLAN QoS (802.1p/q)Secure con guration  le via AESencryptionDigest authentication using MD5/MD5-sess, Admin/user con guration modeOpen VPN (v2)ManagementConfiguration: browser/phone/autoprovisionAuto-provision via http, https, PnP, ftp,tftp, TR069Reset to factory, RebootPacket trace exportSystem log exportPhysical FeaturesTI DaVinci dual-core chipset, Touchscreen7” digital TFT-LCD with 800x480 pixelsresolutionRotatable CMOS sensor camera with 2MpixelsHD Handset and speakerphone128MB  ash and 256MB DDR2 memory27 keys including 4 soft keys6 feature keys: Mute/Camera/PhonebookTransfer/Redial/Hands-free2xLEDs for power and status indication2xRJ45 Ethernet 10/100M ports1xUSB2.0 port, 1xSD card slot2.5mm headset portPSTN port optionalA/V out: RCA style stereo audio andcomposite video outputOptional power adapter: AC 100~240Vinput and DC 5V/3A outputPower over Ethernet (PoE) included:IEEE 802.3af, Class 0Power consumption: 4~10WCerti cationsWEEE CompliantROHS CompliantNote: * Where supportedPhone Features
> HD voice: HD handset, HD speaker

> Hearing aid compatible (HAC) handset

> Codecs: 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, 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

> Wall mountable (optional)

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

> Power consumption (PSU): 2.23-7.29W

> Power consumption (PoE): 3.19-10.78W

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

> Operating humidity: 10~95%

> Operating temperature: -10~50°C

Management

> Configuration: browser/phone/autoprovision

> 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 using MD5/MD5-sess

> OpenVPN, IEEE802.1X

> IPv6

> LLDP/CDP/DHCP VLAN

> ICE

Package Freatures

> Package content:

- Yealink SIP-T48S IP phone

- Handset with handset cord

- Ethernet Cable (2m CAT5E UTP Cable)

- Stand

- Quick Start Guide

- Power Adapter (Optional)

- Wall Mount Bracket (Optional)