Protocols/Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS(A record,
SRV, NAPTR), DHCP, PPPoE, SSH, TELNET, TFTP, NTP, STUN, SIMPLE, LLDP, LDAP, TR- 069, 802.1x, TLS,
SRTP*, IPV6, CDP/SNMP/RTCP-XR
Network interface
Dual Gigabit 10/100/1000 Mbps network port with auto-negotiation and built-in PoE
Graphic display
4.3 inch (480x272) TFT color LCD
Bluetooth
Yes, built-in
Function keys
12 line keys, up to 6 SIP accounts, 5 XML programmable context-sensitive
soft keys, 5 navigation/menu keys, 11 special
function keys for functions such as: MESSAGE (with LED indicator),
phonebook, transfer, conference, call hold, headset, mute,
send/repeat dial, speakerphone, volume+, volume-0
Voice codecs
Support G7.29A/B, G.711µ/a-law, G.726, G.722(Broadband), G723.1, iLBC, Opus,
in-band and out-of-band DTMF(in audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC, AJB, AGC
Additional ports
RJ9 headset jack (which allows you to use EHS with Plantronics headsets), USB,
expansion module port
Telephony funct
