General
Phone Features
Call Services
Voice Mail, Caller ID, Call Waiting, Call Forwarding, Call Transfer, Call Hold, Call park/pickup
Conference Call Capability
5-way
Indicators
Visual ringer light, voice message waiting indicator
Additional Functions
Built-in clock, call recording, redial, mute, HD Voice, auto answer, Do Not Disturb (DND), anonymous call, anonymous call rejection
IP Telephony
Main Features
Multiple VoIP protocol support, integrated Ethernet switch
VoIP Protocols
SIP, SIP v2, SRTP
Voice Codecs
G.722, G.723.1, G.729ab, G.711u, G.711a, G.726, iLBC, Opus
Quality of Service
IEEE 802.1Q (VLAN), IEEE 802.1p, Type of Service (ToS)
IP Address Assignment
DHCP, static
Security
IEEE 802.1X, TLS, SRTP
Power Over Ethernet (PoE) Support
Yes
Network Protocols
IP, TCP, TFTP, UDP, HTTP, DNS, HTTPS, SRTP, TR-069, SNTP, STUN, Lightweight Directory Access Protocol (LDAP)
Network Ports Qty
2 x Ethernet 10Base-T/100Base-TX/1000Base-T
Voice Features
Comfort noise generation (CNG), voice activity detection (VAD), HD Voice, acoustic echo cancellation (AEC), packet loss concealment (PLC), adaptive jitter buffer (AJB), automatic gain control (AGC), Yealink Optima HD voice technology
Network Features
Network Address Translation (NAT), Class 2 PoE, Lightweight Directory Access Protocol (LDAP)
Phone Memory
Phone Directory Capacity
1000 names & numbers
Display
Type
LCD display - monochrome
Display Resolution
192 x 64 pixels
Miscellaneous
Connections
Headset jack / RJ-9 ¦ Handset jack / RJ-9 ¦ 2 x USB ¦ 2 x network / RJ-45
Hearing Aid Compatible
Yes
Placing / Mounting
Wall-mountable, table-top
Cables Included
Ethernet cable - 2 m
Included Accessories
Stand
Dimensions & Weight (Base)
German
