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Description

POWER
IEEE 802.3af Power over Ethernet
External universal AC power supply: 100–240 V, 24 V, 0.5 A, 2.5 mm DC plug

DISPLAY
Size (W x H): 248 x 68 pixels
White LED backlight with custom intensity control

KEYPAD
Standard 12-key keypad
Context-dependent soft keys: 4
On-hook/Off-hook, conference, redial, mute, volume up/down, menu, 5-way navigation keys

AUDIO FEATURES
3 cardioid microphones: 200–7000 Hz
Loudspeaker frequency response: 220–7000 Hz
10 ft (3 m) microphone pickup
Volume : Adjustable to 86 dB at 0.5 meter peak volume
Full-duplex : Type 1 compliant with IEEE 1329
Individual volume settings with visual feedback for each audio path
Voice activity detection
Comfort noise fill
DTMF tone generation/DTMF event RTP payload
Low-delay audio packet transmission
Adaptive jitter buffers
Packet loss concealment
Acoustic echo cancellation
Background noise suppression
Supported codecs : G.711 (A-law and Mu-law), G.729a (Annex B), G.722, iLBC 13.33 and 15.2kbps

SIP CALL HANDLING FEATURES
Call hold*
Call transfer, divert (forward) and pickup
Distinctive incoming call treatment/ call waiting
Advanced Local three-way conferencing (conference, join, split, hold, resume)
One-touch speed dial, redial*
Remote missed call notification
Automatic off-hook call placement
SIP URI dialing
Do not disturb function
Shared call/bridged line appearance
Busy Lamp Field (BLF)
Multicast Group Paging and Push-to-Talk
*Also available in PSTN mode

OTHER FEATURES
Automated failover (SIP to PSTN)
SIP Server Redundancy
Time and date display/call timer
User-configurable contact directory and call history (missed, placed, and received)
Corporate Directory (LDAP) support
User selectable ringer tones
Wave file support for call progress tones
Unicode UTF-8 character support
Multilingual user interface encompassing Simplified Chinese, Traditional Chinese Danish, Dutch, English (Canada /US/ UK), French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Slovenian, Spanish, Swedish
Called, connected party information
Support for multiple Caller ID standards** : Bellcore Type 1, ETSI, DTMF

INTERFACES
Ethernet 10/100 Base-T
Two-wire RJ-11 analog PBX or PSTN interface
2.5 mm connection port***
2 RJ9 ports for wired expansion microphones
*** SoundStation Duo uses a cable that connects to a standard 2.5mm headset connector. If your mobile phone model or PC does not support this type of connection you will need an adapter (not included).

NETWORK AND PROVISIONING
IP Address Configuration — DHCP and Static IP
Time synchronization with SNTP server
FTP/TFTP/FTPS/HTTP/HTTPS serverbased central provisioning for mass deployments. Provisioning server redundancy supported.
Web portal for individual unit configuration and online software upgrade
QoS Support—IEEE 802.1p/Q tagging (VLAN), Layer 3 TOS and DSCP
Telchemy® VQmon® support
Network Address Translation (NAT) support—static
RTCP support (RFC 1889)
Configuration import/export
Local digit map (dialing plan)
Hardware diagnostics
Status and statistics
Reset to factory settings

SECURITY
Transport Layer Security (TLS)
Encrypted configuration files
Digest authentication
Password login
Support for URL syntax with password for boot server
HTTPS secure provisioning
Support for signed software executables
IEEE 802.1x Network Access Control

TELECOM
FCC Part 68
AS/ACIF S002/S004
Telepermit
KC
GOST-R
TRA
Protocol support
IETF SIP (RFC 3261 and companion RFCs)

SOUNDSTATION DUO SHIPS WITH
Conference phone console
21 ft (6.4 m) combined analog and Ethernet cable with power injection module
Universal power supply 24 V, 0.5 A
7 ft (2.1 m) region-specific power cord
7 ft (2.1 m) Ethernet cable
7 ft (2.1 m) telephony cable (RJ11)
Quick Start Guide

ACCESSORIES
2 x expansion microphones 200–7000 Hz

ENVIRONMENTAL CONDITIONS
Operating temperature : 32–104° F (0–40° C)
Relative humidity : 20–85% (non‑condensing)
Storage temperature: -22–131°F : (-30–55°C)