One VoIP account
Call hold, mute, DND
One-touch speed dial, hotline
Call forward, call waiting, call transfer
Group listening, SMS, emergency call
Redial, call return, auto answer
Local 5-way conferencing
Direct IP call without SIP proxy
3” 132×64-pixel graphical LCD
LED for call and message waiting indication
Intuitive user interface with icons and soft keys
Multilingual user interface
6 features keys: transfer, message, headset, redial, mute, hands-free speakerphone
5 navigation keys
Volume control keys
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
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
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
Configuration: browser/phone/auto-provision
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