Yealink SIP-T56A IP Telephone Set

Audio Features
• HD voice: HD handset, HD speaker
• Hearing aid compatible (HAC) handset
• Yealink Noise Proof Technology
• Audio codec: G.722, G.711(A/μ), G.729A/B, G.726, G.723.1, Ilbc, SILK
• DTMF: In-band, Out-of-band (RFC 2833) and SIP INFO
• Full-duplex hands-free speakerphone with AEC
• VAD, CNG, AEC, PLC, AJB, AGC

Directory
• Contacts synchronize with client
• Show favorite contact picture
• Support local contacts
• Support global search, compatible with exchange
• Intelligent search
• Call history: placed/received/missed/forwarded

Signing into Skype for Business
• Sign in: User Credentials/PIN Authentication
• Web Sign-in
• Signing in via BToE
• 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 lock with PC

Phone Features
• Presence status synchronize with client
• Reset presence status
• 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 the park
• SFB conferencing (Microsoft CCCP)
• Boss/Admin function
• Common Area Phone (CAP)
• Calendar support
• Ringtones, hotline
• Private line
• Hot-desking
• Dial plan, group call pickup
• E911, Multiple Emergence Number
• Response group
• Visual voicemail, message waiting indicator (MWI)
• Volume adjustment

Display and Indicator
• 7″ 1024 x 600 capacitive touchscreen
• 5 points multi-touch surface
• Multilingual user interface
• Modern Skype for the Business interface, Full keyboard
• LED for call and message waiting for an indication
• Caller ID with name, number and photo
• Presence status: available, busy, DND, be right back, off work, away

Interface
• Dual-port Gigabit Ethernet
• Power over Ethernet (IEEE 802.3af), class 3
• 1 x USB 2.0 port
• 1 x Security lock port
• 1 x RJ9 (4P4C) handset port
• 1 x RJ9 (4P4C) headset port