57
Size Diameter 240 mm, height 77 mm
Weight 1 kg
Colour Liquorice black
Display Illuminated graphics (LCD), 128x64
Keypad Alphanumerical 0–9, *, on, o, 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 and SDHC memory cards
Connections
Network connection RJ45, Ethernet 10/100 Base T
USB connection USB 2.0 Mini B.
Bluetooth
®
Bluetooth v4. Support for Bluetooth Low Energy Profiles, GAP
and GATT. Used for Unite connection, not for audio transfer.
NFC Support for simplified Bluetooth pairing and connection using
NFC (near-field communications).
NFC Forum Type 4 and ISO/IEC 14443 Type A support.
Power supply Transformer 100–240 V AC/13.5 V DC
IEEE 802.3af Power over Ethernet, Class III.
Expansion microphones x2 modular 4/4
Auxiliary Modular 4/4 for wireless headset
Network and communication
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
Audio support Codecs: G722, G711 A-law, G711 µ-law, G729ab
DTMF tone generation RFC 2833, SIP INFO, In-band
Time servers NTP and SNTP
Configuration Via integrated web server
TECHNICAL DATA
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