SST Polycom 331



NOTE: This phone is for use with Shooting Star Technology VOIP PBX, you must have an account or call Shooting Star Technology at (702) 924-2870 and ask for sales.

Polycom® SoundPoint IP® 321 and 331 Enterprise-grade SIP phones for remarkable value

The Polycom® SoundPoint® IP 321 and 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 321 and 331 phones feature a full-duplex IEEE 1329 Type 1-compliant speakerphone with Polycom’s legendary Polycom® Acoustic ClarityTM technology that delivers excellent sound quality and enables noise-free and echo- free conversations that are as natural as being there.

Enterprise-grade feature set1

The SoundPoint IP 321 and 331 phones 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 321 and 331 phones 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 321 and 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 321 and 331 desktop phones.

Product specifications Lines (directory numbers)

• Up to 2 lines with up to 2 calls per line


• 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 keyHeadset 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 equipmentAudio features
  • Full-duplex hands-free speaker- phone with Polycom® Acoustic ClarityTM technology
    – Type 1 compliant with IEEE 1329 fullduplex standards
  • Frequency response—300Hz–3300Hzfor handset, headset and hands-free

    speakerphone modes

  • Codecs: G.711 μ/A and G.729A (Annex B)
  • Individual volume settings with visualfeedback for each audio path
  • Voice activity detection
  • Comfort noise fill
  • DTMF tone generation/DTMF eventRTP payload
  • Low-delay audio packet transmission

• Adaptive jitter buffers
• Packet loss concealment
• Acoustic echo cancellation
• Background noise suppression

Call handling features1

• 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 presence2
– 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.

Multilingual user interface encompassing Danish, Dutch, English (Canada/US/
UK), French, German, Italian, Norwegian, Russian, Spanish, Swedish

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

    • 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

1. Some of these features need to be supported by an appropriate call / applications server

2. Requires SIP version 3.1.3 Rev C or higher

Polycom 331 Setup



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