Poly Sound Station Duo

Poly SoundStation Duo

Dual-mode conference phone
The evident choice for crystal clear group audio conferencing

Be it a large organization or small, thousands of conference rooms or just one, you have a necessity to bring your scattered teams, business partners, and customers together to collaborate and communicate. Poly Conference phones have become the de facto standard to connect groups of people across locations. Poly has taken the group productivity tool and standard office workhorse concepts to the next level for small to midsize rooms, providing the best in the flexibility of deployment, easy usage, and audio quality with the Poly SoundStation Duo conference phone.

Matchless investment protection with a wide range of connection options

The Poly SoundStation Duo conference phone works, irrespective of you currently have a traditional analogue connection or have already upgraded to Voice over IP (VoIP) telephony. The SoundStation Duo provides the most robust standards-based interoperability in the industry in VoIP environments.

Economical deployment and administration cost

Establishing the SoundStation Duo for analog operation is as simple as plugging it in. A web-based tool supports with setup and assists online software upgrades, in open SIP-based VoIP environments. A large backlit display with broad multi-language support provides call information and context-sensitive call functions.

Crystal-clear voice conferencing with no concession

The SoundStation Duo phone offers exceptionally apparent voice quality, assisted by Poly’s renowned audio technology. The SoundStation Duo conference phone brings excellent group conferencing experiences without any interruptions from Poly HD Voice technology and full-duplex audio to the latest echo cancellation and protection to mobile phone and wireless device interference.


  • Inbuilt investment resistance — Use in analog or IP mode and keep it up-to-date with simple online software upgrades
  • Strong interoperability — Adaptable with a broad array of IP call platforms to enhance voice quality and feature its availability while streamlining management and administration
  • Business stability — Auto inundating from IP to analog and failback for continuous operation in case of a network collapse
  • Exceptional clarity of voice — Poly HD Voice technology procreates your IP conference calls more effective and productive
  • Easy to install and monitor — Web configuration tool removes the need for a boot server
  • Better call handling, security, and implementation — Influencing the utmost advanced IP endpoint software in the industry
  • Incomparable adaptability — Internet dialling is now possible when connecting to mobile phones and PCs

Product specifications


  • IEEE 802.3af Power over Ethernet
  • 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, 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

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
  • 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

Protocol support

  • IETF SIP (RFC 3261 and companion RFCs)

Sound Station Duo ships with

  • Conference phone console7
  • 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

Environmental conditions

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


  • 1-year

Country of origin

  • 2200-19000-001 – Made in China
  • G2200-19000-001 – Assembled in USA

Phone dimensions (L x W x H)

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

Phone console weight

  • 1.62 lb (0.74 kg)

Box dimensions (L x W x H)

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

Box weight

  • 4.56 lb (2.06 kg)

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