Display:
Graphic
LCD display (128x64 pixels) with blue-green backlit
Brightness and contrast adjustable
Line and Phone status indication icons
Date and time
LED:
1 message waiting indication LED
1 handset LED to indicate urgent call and link failure
4 line status LEDs
16 programmable keys with LEDs
Functional key LEDs for
speaker, mute, hold and headse
Keypad:
12 numeric keys
4 sensitive soft keys
5 sensitive navigation keys
4 sensitive line keys
16 programmable keys
11 functional keys for speaker, mute,
headset, hold, transfer, conference, message, phonebook, redial and volume up/down
Audio:
Codecs: G.711 (A-law and u-law), G.722, G.723.1, G.726-32, G.729A/B, iLBC
Individual volume settings with visual indication for handset, headset, hand-free and ringer
Voice activity detection (VAD)
Comfort noise generation (CNG)
Acoustic gain and echo cancellation (AGC, AEC)
Adaptive jitter buffers and packet loss concealment (PLC)
DTMF tone generation (RFC2833, in-band and SIP-INFO)
Near full-duplex speakerphone
Network:
IETF SIP V2 (RFC3261)
STUN NAT, DHCP, TFTP, Telnet, DNS, SNTP, HTTP, SNMPv2
IPv4 and IPv6 protocol
Security: IEEE 802.1x, HTTPs, TLS, SSL, SRTP, SIPS, VPN IPsec
Instant messaging: SIMPLE, XMPP
Weight of product: 900g
Dimension: 233 x 200 x 45 mm