SIP-T48G (Skype) Yealink IP Phone

> Optima HD voice
> Modern UI
> Full Keyboard
>Dual-port Gigabit Ethernet
> 7″ 800 x 480-pixel color
touch screen with backlight
> PoE Support
> BToE
> High interoperability
> Headset, EHS support
> Wall Mountable
Specification
Audio features
• Yealink Optima HDvoice
• Full-duplexhands-freespeakerphone with AEC
• Codecs: G.722 (Wideband),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
• View Microsoft Skype for Business/Lync contacts and their currentpresencestatus
• Show contactpicture,favorite contacts
• Support search Active Directory contacts
• Intelligentsearch method
• Callhistory: placed/received/missed/forwarded

Signing into Microsoft Skype for Business/Lync
• Sign in: PINAuthentication/User credentials
• Signing in via BToE
• Signing in via phone web interface
• Auto root certificatefetch

Phone features
• Presencestatus synchronize with client
• Resetpresencestatus
• Callhold, mute, DND
• Call waiting, Redial
• Branch office support
• Callforward, call transfer, call park
• Local3-way conferencing
• E911, Federation, Response group
• Ring toneselection/import/delete
• Dial plan
• Private line
• Voice mail, Message waiting indicator (MWI)
• Volume adjustment

BToE features
• Click to call/Click to answer
• Audio deviceswitch from IP Phone to PC/windows PAD
• Pair phone with IP

Interface
• Dual-portGigabit Ethernet
• Power over Ethernet (IEEE802.3af ), class 3
• 1xRJ9 (4P4C)handsetport
• 1xRJ9 (4P4C)headsetport
• 1XRJ12 (6P6C) EXT port

Display and indicator
• 7″800 x480-pixel touch screen with backlight
• 24 bitdepth color
• Modern UI, Full keyboard
• LEDfor call and message waiting indication
• National languageselection
• Caller ID with name, number, picture
• Presencestatus control: available, busy, DND,
berightback, off work, appear away

Network and security
• SIPv1 (RFC2543), v2 (RFC3261)
• LLDP-MED VLAN assignment
• IPv6
• Proxy modeand peer-to-peer SIP link mode
• IPAssignment: Static/DHCP/PPPoE
• DNS Assignment: Static/DHCP
• HTTP/HTTPS web server
• Timeand datesynchronization usingSNTP
• UDP/TCP/DNS-SRV(RFC 3263)
• QoS: 802.1p/Q tagging (VLAN), Layer 3 ToS, DSCP
• SRTPfor voice
• TransportLayer Security (TLS)
• HTTPS certificate manager
• Digestauthentication using MD5/MD5-sess
• IEEE802.1X

Management
• Configuration: browser/phone/Auto provisioning
• Supportof in-band provisioning from Microsoft Skype for Business/Lync Server
• Single identity (activedirectory)
• Media Bypass
• FirewallTraversal
• Reset to factory, reboot
• Package tracing export, system log

Other physical features
• ExternaluniversalAC adapter (optional):
AC100~240V input and DC 5V/2AOutput
• Power consumption (PSU): 2.0-6.4W
• Power consumption (PoE): 2.4-10.5W
• Dimension(W*D* H*T):
266mm*226mm*185mm*54mm
• Operatinghumidity: 10~95%
• Storage temperature: -10~50°C

Package features
• Qty/CTN: 5 PCS
• N.W/CTN: 8.2KG
• G.W/CTN: 9.0KG
• Giftboxsize: 324mm*263mm*128mm
• Carton Meas: 660mm*338mm*273mm