Phone features
4 SIP accounts
Call hold, microphone mute, DND mode
One-touch speed dial, hotline
Call forward, call waiting, call transfer
Redial, call return, auto answer, direct IP call
5-way conferencing
Group listening, SMS, emergency call
Ring tone selection/creation
Set date time automatically or manually
Dial plan per account
RTCP-XR (RFC3611), VQ-RTCPXR (RFC6035)
Action URL/URI
Voice codecs features
Codecs: iLBC, G.722, G.711(A/μ), Opus
G.723, G.729AB, G.726-32
Dial tone: In-band, RFC 2833, SIP INFO
Full-duplex hands-free speakerphone with AEC
VAD, AGC, CNG, AEC, PLC, AJB
Directory
Local phonebook with up to 1000 entries
XML/LDAP remote phonebook
Phonebook search/import/export
Call history: dialed/received/missed/forwarded
Black list
IP-PBX features
Busy Lamp Field (BLF), Bridged Line Appearance (BLA)
Anonymous call, anonymous call rejection
Message Waiting Indicator (MWI), voice mail
Intercom, paging
Call park, call pickup
Display and indication
320x240 pixel color LCD with backlight
LED for call and message waiting indication
LED indication for line status information
National language selection
CLIP with name and phone number
Interfaces
Two 10/100/1000 Mbps Ethernet ports
Power over Ethernet (IEEE 802.3af), class 2
1xRJ9 (4P4C) handset port
1xRJ9 (4P4C) headset port
Physical features
Automatic configuration via HTTP/HTTPS FTP/TFTP
Automatic configuration via PnP
SNMP and TR-069 support
Local tracing and system log export
Phone lock for personal privacy protection
Network and security
SIP v1 (RFC2543), v2 (RFC3261)
SIP server/proxy redundancy
NAT bypass: STUN mode
DHCP/static setup/PPPoE/IEEE802.1X/open VPN
HTTP/HTTPS web server
Time and date synchronization via SNTP
DNS-NAPTR/DNS-SRV(RFC 3263)
QoS: 802.1p/Q tagging (VLAN),
Layer 3 ToS DSCP
TLS (Transport Layer Security), SRTP, ZRTP
HTTPS certificate manager
AES encryption for configuration file
Digest authentication using MD5/MD5-sess
IPv6 support
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