SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV,NAPTR), DHCP, SSH, TFTP, NTP, STUN, SIMPLE, LLDP-MED, 802.1x, TLS, SRTP, IPv6

Voice Codecs and Capabilities

• Support for G.711μ/a, G.729A/B, G.722 (wide-band), iLBC, Opus, in-band and out-of-band DTMF (In audio, RFC2833, SIP INFO), VAD, CNG, AEC, PLC, AJB, AGC, ANS

Graphic

• 1.8 inch (128×160) TFT colour LCD

Peripherals

• 2 soft keys, dial, hangup, speakerphone, phonebook, backlit keypad, proximity sensor, vibration motor, volume button and navigation keys

Push-to-talk

• Customisable button for push-to-talk

Auxiliary Ports

• 3.5 mm headset jack, Micro USB port for charging, dual-MIC, dual-color MWI LED

Telephony

• Hold, transfer, forward, 3-way audio conference, downloadable phonebook (XML, LDAP, up to 500 items), call waiting, call log (up to 100 records), off-hook auto dial, auto answer, flexible dial plan, personalized music ringtones, server redundancy and fail-over, push to talk

Security

• User and administrator level passwords, MD5 and MD5-sess based authentication, 256-bit AES based secure configuration file, SRTP, TLS, 802.1x media access control

HD Audio

• Yes, both on handset and speakerphone with support for wideband audio, HAC supported

QoS

• 802.11e and Layer 3 (ToS, DiffServ, MPLS) QoS

Multi-language

• English, Chinese, German, French, Italian, Portuguese, Russian, Spanish, and more

Upgrade/ Provisioning

• Firmware upgrade via TFTP/HTTP/HTTPS/FTP/FTPS, mass provisioning using encrypted XML configuration file, manual upload

Power and Green Energy Efficiency

• Universal power adapter included
• Input: 100-240VAC; Output: +5VDC, 1A (5W)
• 1500mA Li-ion battery, 120h standby time and 6h talk time

Physical

• Headset dimensions: 158.5 x 50 x 22.5mm
• Charger cradle dimensions: 81.15 x 75.89 x 36.36mm
• Handset weight: 120g
• Handset package weight (not including QIG): 340g

Temperature and Humidity

• Operating Temperature: 0ºC to 45ºC; Operating Humidity: 10-90% (non-condensing)
• Storage Temperature: -20ºC to 60ºC; Storage Humidity: 10%-90% (non-condensing)