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Trio 8500 Smart conference phone for any-sized meeting space

  • Hear and be heard with outstanding clarity
  • Collaborate using audio, video and more
  • Use your favorite platform to connect with ease


Mid-sized rooms, your champion has arrived.

Turn your mid-size conference rooms into amazing spaces for collaboration with one simple addition: the Trio 8500 conference phone.

Launch meetings with a single touch. Video conferencing and content sharing can be easily added, ensuring future-proof flexibility. USB and Bluetooth® are built in, so you can use your device of choice.


Works everywhere you do (and beyond)

Poly conference phones work on more than 60+ communication platforms — most with a native user experience. Choose the one that works for you!

Poly is certified (when offered) with all major communication platforms. 

In selecting a conferencing technology, our main driver was ease-of-access. We wanted people to be independent so that communication and collaboration could be fostered at the level we needed

Gianluca D'Aniello , SVP and CTO
The Associated Press

Trio 8500 Features

  • User interface features
    • Gesture-based, multitouch-capable capacitive touch screen
    • 5-inch color LCD (720 x 1280 pixel), 9:16 aspect ratio
    • On-screen virtual keyboard
    • 1x USB 2.0 Type A-compliant host port USB battery charging BC1.2 compliant (requires full Class 4 power input on LAN IN for operation)
    • 1x USB 2.0 Micro-B device port
    • Integrated Bluetooth 4.0
    • 3 illuminated mute buttons
    • Unicode UTF-8-character support
    • User interface localized in Arabic, Chinese, Danish, Dutch, English (Canada/US/UK), French, German, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Slovenian, Spanish and Swedish
    • 3 cardioid microphones
    • Loudspeaker
      • Frequency 180-14,000 Hz
      • Volume: 90 dB at 0.5m peak volume
    • 14ft/4.3m microphone pickup range
    • Supported codecs:
      • G.711 (A-law and μ-law)
      • G.722
      • Siren™ 7
    • HD Voice™
    • Acoustic Clarity technology provides full-duplex conversations, acoustic echo cancellation and background noise suppression— Type 1 compliant (IEEE 1329 full duplex)
    • NoiseBlock™
    • Voice activity detection
    • Comfort noise generation
    • DTMF tone generation (RFC 2833 and in-band)
    • Low-delay audio packet transmission
    • Adaptive jitter buffers
    • Packet loss concealment
    • Bluetooth device pairing for wideband speech and multimedia streaming (HFP/AD2P)
    • Call handling features
    • Up to 3 lines (max. 1 Skype for Business)
    • Shared call/bridged line appearance
    • Distinctive incoming call treatment/call waiting
    • Call timer and call waiting
    • Call transfer, hold, divert (forward), pickup
    • Called, calling, connected- party information
    • Local five-way audio conferencing
    • Daisy-chain up to three
    • One-touch speed dial
    • Do-not-disturb function
    • Local configurable digit map/dial plan
    • Corporate directory access using LDAP
    • Visual conference management
    • Open SIP
    • Skype for Business certified (conference phone only)
    • Microsoft Teams certified (conference phone only)
    • Zoom certified
    • SDP
    • IETF SIP (RFC 3261 and companion RFCs)
    • Single-port gigabit Ethernet 10/100/1000Base-TX across LAN
    • Manual or dynamic host configuration protocol (DHCP) network setup
    • Time and date synchronization using SNTP
    • FTP/TFTP/HTTP/HTTPS server-based central provisioning
    • Zero Touch Provisioning
    • Provisioning and call server redundancy supported
    • QoS Support
      • IEEE 802.1p/Q tagging (VLAN), layer 3 TOS, and DSCP
    • VLAN-CDP, DHCP VLAN discovery
    • LLDP-MED for VLAN discovery
    • FIPS 140-2 compliant cryptographic module
    • 802.1X authentication and EAPOL
    • Media encryption via SRTP
    • Transport layer security (TLS v1.2)
    • Encrypted configuration files
    • Digest authentication
    • Password login
    • Support for URL syntax with password for boot server address
    • HTTPS secure provisioning
    • Support for signed software executables
    • LAN IN: Built-in auto-sensing IEEE 802.3at. PoE Device (Class 4)1. Backward compatibility with IEEE 802.3af
    • Optional Power kit includes extended single-port gigabit midspan, 802.3at Type 2 compliant, local power cord and network cable (2200-66740-xxx)
    • Japan MIC/VCCI Class B
    • FCC Part 15 (CFR 47) Class B
    • ICES-003 Class B
    • CISPR22 Class B
    • VCCI Class B
    • EN61000-3-2; EN61000-3-3
    • NZ Telepermit
    • Australia RCM
    • ROHS compliant
    • Energy Star® compliant
    • US
      • FCC Part 15.247
    • Canada
      • RSS 247 Issue 1
    • EU
      • ETSI EN 300 328 v1.9.1
    • Japan
      • Japan Item (19)
    • Australia
      • AS/NZ4268
    • UL 60950-1
    • UL 62368-1
    • CE Mark
    • CAN/CSA-C22.2 No. 60950-1-03
    • CAN/CSA C22.2 No. 62368-1-14EN 60950-1
    • EN 60950-1
    • EN 62368-1
    • IEC 60950-1
    • IEC 62368-1
    • AS/NZS 60950-1
    • AS/NZS 62368-1-17
    • Operating temperature: 0° to 40°C (+32° to 104°F)
    • Relative humidity: 5% to 95% (non-condensing)
    • Storage temperature: -20° to +70°C (-4° to +160°F)
    • Trio 8500 Expansion Microphones (2200-65790-001)
    • USB 2.0 Cable, 4ft/1.2m (2200-49307-002)
    • Open SIP Conference phone 2200-66700-025 OR Skype for Business or Microsoft Teams conference phone 2200-66700-019
    • 7.6 m/25 ft network cable CAT 5e
    • Cable wrap
    • Tactile overlay for improved accessibility
    • Setup sheet
    • 1 year
    • 35.6cm x 30.9cm x 7cm
    • 985 grams
    • 41cm x 36cm x 9cm
Trio 8500 Data Sheet

Learn about the features, benefits and technical specifications of the Trio 8500.

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Trio Video Solutions Data Sheet

Learn about the features, benefits and technical specifications of the Trio Video Solutions.

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Trio Infographic

Trio is the smartphone for your modern conference rooms. See how Trio transforms conference rooms of any size into hassle-free spaces for team collaboration.

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Top 10 Reasons to Love Poly Trio

Learn more about Top 10 Reasons to Love Poly Trio.

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Introducing Poly Trio

Learn more about introducing Trio.

Introducing Trio 8500

Learn more about introducing Trio 8500.

Poly Trio Hybrid Registration

Learn more about Trio Hybrid Registration.

Resource Library

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