Phone Support Adjustable Voice Volume
Selectable Ring Tones
XML Browser
Action URL/URI
Keyboard lock
Blacklist: 100 Groups
Support 5 Remote Phonebook URLs
LDAP
Support Multiple Languages
Support EHS wireless headsets ( Plantronics, Jabra, Sennheiser)
IP-PBX Support SMS, Voicemail, MWI
Music On-hold, Intercom, Multicast
Call Pickup, Call Pickup in Group
Anonymous Call
Anonymous Call Rejection
Management Auto-provisioning: FTP / TFTP / HTTP / HTTPS / PnP
Configuration via HTTP/HTTPS web
SNMP, TR069
Network capture
NTP/Daylight saving time
Firmware upgrade via web
Syslog
Configuration backup/restore
Equipment Management System (NMS)
Audio support HD Voice
Echo Cancellation / Dynamic Jitter
Voice Activity Detection (VAD)
Comfort Noise Generation (CNG)
Full-duplex Speaker
Protocols & Standard DTMF: In-Band, RFC2833, SIP INFO
LLDP
802.1X, ...