Technical data

Size Diameter 240 mm, height 77 mm
Weight 1kg
Colour Liquorice black
Display screen Illuminated graphics (LCD), 128x64
Keypad Alphanumerical 0–9, *, on, off, mute, hold, volume up, volume down, 5 buttons for menu navigation, line mode, conference guide
Anti-theft protection Kensington security slot
Memory Support for SD memory cards up to 2 GB

Network connection Modular 8P8C (RJ45), Ethernet 10/100 Base T
Power supply AC adapter 100–240 V AC/13.5 V DC IEEE 802.3af Power over Ethernet
Extra microphones Two (2) modular 4P4C
Auxiliary Modular 4P4C for wireless headset

Network addressing DHCP and static IP
NAT traversal STUN, ICE, and TURN
Connection protocol SIP 2.0 (RFC 3261 and companion RFCs)
Transport UDP, TCP, TLS and SIPS
Security SRTP and TLS
Quality of service DiffServ, VLAN and 802.1x
Audio support Codecs: G.722, G.711 A-law, G.711 μ-law, G.729ab
DTMF tone generation RFC, SIP INFO, In-band
Time servers NTP and SNTP

— Daylight saving: Configurable for automatic adjustments

Internal phone book 1,000 entries per profile (4 password protected profiles)

Export/import of directory Call list

External directory Support for LDAP

Technology OmniSound® 2.0 Wideband
Microphone Omni-directional
Reception area Up to 30 metres2, >10 people
Speaker Frequency band 200–7000 Hz,
Volume 90 dB SPL 0.5 m
Equalizer Three pitches: soft, neutral, bright

Temperature 5°–40°C
Relative humidity 20-80% condensation free
Recommended acoustic conditions Reverberation period: 0.5 S Rt 60

Background noise: 45 dBA

Electrical safety EN 60950-1:2006,

ANSI/UL 60950-1-2002,

CAN/CSA-C22.2, No. 60950-1-03

EMC/Radio EN 301 489-3 V1.4.1 (2002-08),

EN 301 489-1 V1.6.1 (2005-09),

FCC Part 15 subpart B class A,

FCC Part 15 subpart C,

EN 300220-1:2000,

EN 300220-2:2000,