Phone Features

• 3 VoIP accounts, Hotline, Emergency call
• Call hold, call waiting, call forward & call return
• Call transfer (blind/semi-attended/attended)
• Caller ID display, Redial, Mute, DND
• Auto-answer; 3-way conferencing
• Direct IP call without SIP proxy
• Speed dial, SMS, Voicemail
• Message Waiting Indication (MWI) LED
• Tone scheme, volume control
• Soft keys programmable
• Ring tone selection/import/delete
• Phonebook (300 entries), Black list
• Call history: dialed/received/missed/forwarded
• Menu-driven user interface
• Localised language and input method

Advanced Features

• XML phonebook search & import
• XML Browser
• LDAP phonebook

VoIP PBX System Integration

• Busy lamp field (BLF); BLF list
• Bridged line appearance (BLA)
• Intercom, Paging, Music on hold
• DND & Forward synchronisation
• Call park, call pickup
• Call recording, call completion
• Group listening, group pickup
• Anonymous call, anonymous call rejection
• Network conference
• Dial Plan, Dial-now
• Distinctive ringtone

Voice Features & Codecs

• Wideband codec: G.722
• Narrowband codec: G.711µ/A, G.723.1
• G.726, G.729AB
• Full-duplex speakerphone with AEC
• VAD, CNG, AEC, PLC, AJB, AGC

Network Features

• SIP v1 (RFC2543) & v2 (RFC3261)
• DNS SRV (RFC3263)
• NAT Traversal: STUN mode
• Redundant server support
• DTMF: In-Band, RFC2833, SIP Info
• Proxy mode and peer-to-peer SIP link mode
• IP Assignment: Static/DHCP/PPPoE
• Bridge/router mode for PC port
• Telnet/HTTP/HTTPS server
• TFTP/DHCP/PPPoE client
• DNS client, NAT/DHCP server
• Logout

Phone Management

• Auto-provision via FTP/TFTP/HTTP/HTTPS
• Auto-provision with PnP
• Configuration: browser/phone/auto-provision
• SNMP V1/2 optional, TR069 optional
• Factory configuration customised
• Trace package & system log export

Phone Security

• 802.1x, VLAN QoS (802.1pq)
• Transport Layer Security (TLS)
• HTTPS (server/client), SRTP (RFC3711)
• Secure configuration file via AES encryption
• Digest authentication using MD5/MD5-sess
• Phone lock for personal privacy protection
• Admin/VAR/User three-level configuration mode