More Information:

• Yealink IP phone
• SIP 2.0 (RFC3261) protocol
• NAT transverse: STUN mode
• IP assignment: DHCP/ static IP
• Auto provision via TFTP/FTP/HTTP/PnP
• QoS: IEEE 802.1p/q tagging (VLAN), layer 3ToS
• In-band, out-of band (RFC2833) and SIP INFO DTMF
• Proxy mode and peer-to-peer SIP link mode
• Wideband codec: G.722
• Narrowband codec: Gµ/A, G.726, G.729AB, G.723.1
• Voice activation detection (VAD)
• Comfort noise generation (CNG)
• Adaptive jitter buffer (AJB), AGC, PLC
• Volume control, Ringtone selection
• Tone scheme, distinctive ringtone
• 1 VoIP account, hotline
• Call hold/waiting/transfer/forward/park/pickup
• Voicemail, MWI, speed dial, dial plan
• 3-way conferencing, DND, mute
• Admin/user configuration mode
• Direct IP call without SIP proxy
• Integrated voice response (IVR) system
• TI TITAN chipset
• 20 keys including 2 programmable keys
• 4 feature keys (transfer/hold/mute/redial)
• 1xdual-color LED, phone label
• 1xRJ45 10/100M ethernet port
• Power over ethernet (PoE): IEEE 802.3af class 1
• Desktop with footstand (detachable), wall-mountable
• Power supply not included