Protocol/Standards
SIP RFC3261, TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS (A record, SRV,
NAPTR), DHCP, SSH, TFTP, NTP, STUN, SIMPLE, LDAP, TR-069, 802.1x, TLS, SRTP*, IPv6
voice and video codecs and features
Supports G.711µ/A, G.729A/B, G.722 (Broadband), iLBC, Opus, In-band
and out-of-band DTMF (In audio, RFC2833, SIP INFO) VAD, CNG, AEC, PLC, AJB, AGC, ANS, H.264(decryption only)
Wi-Fi
Yes, built-in dual-band Wi-Fi module class 802.11 a/b/g/n (2.4GHz and 5GHz)
Encryption
Wi-Fi WEP, WPA/WPA2, WPA Enterprise
Display
2.4 inch (240x320) color TFT LCD screen
Periphery
3 on-screen buttons, dial, hang up, speaker, phonebook,
backlit keyboard, proximity sensor, accelerometer, vibration motor, volume, navigation
keys
Bluetooth
Yes, Bluetooth 4.2
Additional ports
3.5mm jack, micro USB charging port, dual microphone, two-color
LED
Telephony functions
Hold, transfer, forwarding, 3-way voice conference,
downloadable phone books (XML, LDAP, up to 100 entries), call waiting
, call log (up to 1000 entr