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Polycom SoundPoint IP 331P Desk Phone

  • Sale
  • 231 CAD

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This office phone is very popular with hosted phone systems. We provide Canadian support. PoE ready, 2 x Call Appearances, 2.5mm headset jack.

About the Polycom SoundPoint IP 331P Desk Phone

Polycom SoundPoint IP 331 Desk Phone

Enterprise-grade SIP phones for remarkable value

The Polycom SoundPoint IP 331 are two-line SIP phones that deliver superb sound quality as well as a wide range of supported business telephony features. The SoundPoint IP 321 phone has a single 10/100 Ethernet port and is designed for common areas, such as lobbies, hallways, and break rooms, as well as various wall-mounted deployments. The SoundPoint IP 331 phone, with its dual-port 10/100 Ethernet switch for LAN and PC connection, presents a cost-effective solution for cubicle workers as well as call center operators who use a "hard" phone in conjunction with a "soft" client running on the PC.

Superb sound quality

The SoundPoint IP 331 phones feature a full-duplex IEEE 1329 Type 1-compliant speakerphone with Polycom's legendary Polycom Acoustic Clarity™ technology that delivers excellent sound quality and enables noise-free and echofree conversations that are as natural as being there.

Enterprise-grade feature set

The SoundPoint IP 331 phone deliver through an intuitive user interface a full feature set encompassing both traditional business telephony features such as call hold, park, pick-up, transfer, and three-way local conferencing, and more advanced capabilities such as shared call/bridged line appearance, hosts built-in XML microbrowser, and distinctive call treatment.

Efficient installation and provisioning

The SoundPoint IP 331 phone are engineered to make installation, configuration, and upgrades as simple and efficient as possible. The phones' standard base stand can be reversed to become a wall mount, eliminating the need for a separate accessory. Built-in IEEE 802.3af PoE circuitry and a dual-port Ethernet switch (SoundPoint IP 331 phone only) enable flexible deployment options and savings on cabling expenses.

Make great things happen with Polycom SoundPoint IP 331

In today's Internet driven world, the ability to conduct real time communication and collaboration has become critical to an organizations survival. As the market leader in voice, video, data and web solutions, our award-winning IP telephony and conference technology makes it easy for people to interact and maximize productivity over any network, in just about an environment, anywhere around the globe. That's why more organizations worldwide use and prefer Polycom IP telephony and application solutions. Because when people work together, great things happen. See how you, too, can achieve great things with the Polycom SoundPoint IP 331 desktop phones.


  • Enterprise-grade feature set — Two lines, support of shared line presence, 3-way local conferencing, and built-in XML microbrowser
  • Efficient installation and provisioning—Remote, zero-touch provisioning with support of a variety of servers
  • Broad and robust interoperability—Certified to interoperate with a broad array of SIP call control platforms to enable open choices and innovations while simplifying provisioning, management and support

Specification Sheet


More Specifications


Lines (directory numbers)

  • Up to 2 lines with up to 2 calls per line Display
  • 102 x 33 pixel-graphical LCD

Feature keys

    • 3 context-sensitive "soft" keys
    • 2 line keys with bi-color (red/green) LED
    • 2 feature keys ("Menu" and "Dial")
    • 4-way navigation key cluster with center "Select" key
    • 2 volume control keys
    • Dedicated hold key
    • Dedicated headset key
    • Dedicated hands-free speakerphone key
    • Dedicated microphone mute key

Headset compatibility

  • Dedicated 2.5-mm headset port compatible with most monaural mobile phone headsets

Hearing aid compatibility

  • Compliant with ADA Section 508 Recommendations: Subpart B 1194.23 (all)
  • Hearing Aid Compatible (HAC) handset for magnetic coupling to approved HAC hearing aids
  • Compatible with commercially-available TTY adapter equipment

Audio features

  • Full-duplex hands-free speakerphone with Polycom Acoustic Clarity™ technology - Type 1 compliant with IEEE 1329 full duplex standards
  • Frequency response—300Hz–3300Hz for handset, headset and hands-free speakerphone modes
  • Codecs: G.711 μ/A and G.729A (Annex B)
  • 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

Call handling features

  • Shared call/bridged line appearance
  • Flexible line appearance (one or more line keys can be assigned for each line extension)
  • Distinctive incoming call treatment/ call waiting
  • Call timer
  • Call transfer, hold, divert (forward), pickup
  • Called, calling, connected party information
  • Local three-way conferencing
  • One-touch speed dial, redial
  • Call waiting
  • Remote missed call notification
  • Intercom
  • Automatic off-hook call placement
  • Do not disturb function

Other features

  • Interoperability with Microsoft LCS 2005 for telephony and presence - Compatibility with Microsoft Office

Communicator and Windows Messenger 5.1 Clients

  • Enabled for Polycom Productivity Suite
  • Local feature-rich GUI
  • Time and date display
  • User-configurable contact directory and call history (missed, placed and received)
  • Wave file support for call progress tones
  • Unicode UTF-8 character support.

Protocol support

  • IETF SIP (RFC 3261 and companion RFCs)
  • Network and Provisioning
  • SoundPoint IP 331—two-port 10/100 Mbps Ethernet switch
  • SoundPoint IP 321—single 10/100 Mbps Ethernet port
  • Manual or dynamic host configuration protocol (DHCP) network setup
  • Time and date synchronization using SNTP
  • FTP/TFTP/HTTP/HTTPS server based central provisioning for mass deployments
  • Provisioning and call server redundancy supported
  • Web portal for individual unit configuration
  • QoS Support—IEEE 802.1p/Q tagging (VLAN), Layer 3
  • TOS, and DSCP
  • Network Address Translation (NAT) support for static configuration and "Keep-Alive" SIP signalling
  • RTCP support (RFC 1889)
  • Event logging
  • Syslog
  • Local digit map
  • Hardware diagnostics
  • Status and statistics reporting


  • 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


  • Built-in, auto-sensing IEEE 802.3af Power over Ethernet (Class 1)
  • External universal input AC adapter (optional4; 24V DC @ 500mA)


  • FCC Part 15 (CFR 47) Class B
  • ICES-003 Class B
  • EN55022 Class B
  • CISPR22 Class B
  • AS/NZS CISPR 22 Class
  • VCCI Class B
  • EN55024 Class B
  • EN61000-3-2; EN61000-3-3; EN-61000-6-1
  • ROHS compliant
  • Anatel
  • GOST
  • C-tick
  • CCC


  • CE Mark
  • EN 60950-1
  • IEC 60950-1
  • NRTL
  • CAB/CSA-C22.2 No. 60950-1-03
  • AS/NZS 60950-1

Operating conditions

  • Temperature: 10–40°C (50–104°F)
  • Relative humidity: 20%–85%, non-condensing

Storage temperature

  • -40–70°C (-40–160°F)

SoundPoint IP 331/321 comes with:

  • SoundPoint IP 331/321 console
  • Handset with handset cord
  • Base stand
  • Network (LAN) cable
  • Quick Start Guide
  • Product registration card


  • 6.7 in x 5.7 in x 6.9 in x 1.4 in
  • (17 cm x 14.5 cm x 17.5 cm x 3.5 cm)


  • Phone weight: 1.37 lb (0.625 kg)

Part numbers/UPC codes

  • SoundPoint IP 331 - 2200-12365-025/610807694694 for all markets
  • SoundPoint IP 321 - 2200-12360-025/610807690276 for all markets

Unit box dimensions/weight

  • 10 in x 4.2 in x 11.6 in (W x H x D)
  • (25 cm x 10.5 cm x 29.5 cm)
  • 3 lb 4 oz (1.49 kg)

Master carton quantity

  • Ten

Country of origin

  • Thailand


  • 1 year

Phone System Support Overview


Supported Phone Systems


Resources and Documents

Phone System Support Overview

Polycom enjoys a broad support of its phones within IP phone systems and particularily with hosted phone systems.  

When you buy a Polycom 331P Desk Phone from BuyPhonesOnline.ca, Helia will pre-configure the phone so that when you plug it in it will be ready to use right away.

  • 3CX Professional Phone System. - The Polycom 331P System is supported by the 3CX Phone System.  This means is enjoys plug and play functionaity for configuration as well as Option 66 configuration as a local. 3CX does not support this phone as a remote phone though it can be provisioned with a vpn tunnel to the main site..  

Resources and Documents

View all Polycom Phones

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