Knowledgebase: User Guides & Manuals
Polycom IP-321-331-335 Quick Reference Guide
Posted by Alex Salehi, Last modified by Alex Salehi on 21 June 2016 08:06 PM

This article explains the basic operation of the Polycom IP-321, -331, and -335 devices.

imported from a Word document


Soft Keys

  • The three buttons immediately below the LCD display are soft keys.
  • Each soft key performs the action displayed immediately above it.
  • The soft key behavior is context sensitive – the soft key associated action changes according to the current phone state.

Place a Call

  • Dial the desired internal extension or external number.
  • Lift the receiver or press the speakerphone or headset button to call.

Voicemail Access

  • To access voicemail messages, press the Messages key to the right of the keypad. If your phone has no Messages key, dial *98. Depending on your system configuration, you may be asked for your voicemail passcode.

Last Number Redial

  • Lift the receiver or press the speakerphone or headset button.
  • Press the Dial button twice.

Call Hold

  • To place a call on hold, press the Hold soft key.
  • To resume the call, press Hold again.

Call Transfer

Attended Transfer
  • To transfer a call, press the Trans soft key.
  • Dial the destination number, then press Dial.
  • When the destination party answers, announce the caller, and press Trans again to complete the transfer.
Blind Transfer
  • To transfer a call, press the Blind soft key and enter the destination number.
  • Press the Dial key to connect the remote party to the destination, and disconnect yourself from the call.

Ad-Hoc Conference / 3-Way Calling

  • Place (or receive) a call.
  • To add another party to the call, press the Conf soft key.
  • Enter the destination number or extension and press Dial.
  • When the destination party answers, press the Conf soft key again.
  • All parties now join in a 3-way call.

Do Not Disturb

  • To enable Do Not Disturb Mode, press Menu, select Features, then select Do Not Disturb.
  • To resume normal operation, select Do Not Disturb again. The phone now receives calls normally.

Call Forwarding

  • To enable call forwarding, press Menu, then select Features, then select Forward.
  • Select the type of forwarding to enable, then select a destination.
  • The phone display indicates when call forwarding is enabled.
  • To deactivate forwarding, press the Forward soft key, press the forwarding type, then press Disable.

Ringer and Handset Volume

  • To change the ringer volume, when the phone is idle, press the (–) or (+) button at the bottom of the keypad.
  • To change the volume of a call, during an active call, press the (–) or (+) buttons to adjust the volume of the handset, speakerphone, or headset, whichever is active.


  • To browse the phone contact list or call lists, press Menu, then Features, then Directories.
    The call lists show missed, placed, and received calls.

Special Characters

  • When entering a destination with alphanumerics or special characters, be sure to pause momentarily between key presses. For example, when dialing **<ext>, press *, pause for a moment, press * again, then dial the extension.
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