Polycom SoundStation Duo

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

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

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

• 3 cardioid microphones: 200–7000 Hz
• Loudspeaker frequency response: 250 – 7,000 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 µ-law)
– G.729a (Annex A, B)
– G.722
– iLBC 13.33 and 15.2kbps

• 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

• 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, 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

• Ethernet 10/100 Base-T
• Two-wire RJ-11 analog PBX or
• 2.5 mm connection port
• 2 RJ9 ports for wired expansion microphones

• 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

• 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

• CE Mark
• EN60950-1
• IEC60950-1
• UL60950-1
• CAN/CSA C22.2 No.60950-1-03
• AS/NZS60950-1
• RoHS Compliant

• FCC Part 15 (CFR 47) Class B
• ICES-003 Class B
• EN55022 Class B
• CISPR22 Class B
• AS/NZS CISPR22 Class B
• VCCI Class B
• EN22024

• FCC Part 68
• AS/ACIF S002/S004
• Telepermit
• KC
• GOST- R
• TRA

• IETF SIP (RFC 3261 and companion RFCs)

• 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

• 2 x expansion microphones 200–7000 Hz

• Operating  temperature: 32–104° F (0–40° C)
• Relative humidity: 20% – 85% (noncondensing)
• Storage temperature: -22–131°F (-30–55°C)

• 15.6 x 12.9 x 2.5 in (34.6 x 32.7 x 6.4 cm)

• 1.62 lb (0.74 kg)

• 13.9 x 18 x 3.7 in (35.3 x 45.8 x 9.4 cm)

• 4.56 lb (2.06 kg)