The following guide will cover the most popular commands on the Polycom VVX 310 handset. 

Applicable Handset

Dialling Externally

Our previous telecoms system required prefixing external calls with a ‘9’. This is no longer required. To dial an external number, simple entered the number and lift the handset. 

Transfer Call 

(Announce caller before transferring)

  1. Answer call
  2. Press the transfer button
  3. Dial number or Press the ‘lines’ option at the bottom of the screen (you may need to press ‘more’ to see this) and select the speed dial you want to call.
  4. When the extension answers you can speak with them.
  5. Press the transfer button again and this will connect the incoming caller to the number.

Transfer Call

(Blind transfer)

  1. Answer call.
  2. Press the transfer button.
  3. Press the ‘lines’ option at the bottom of screen (you may need to press ‘more’ to see this) and select the speed dial you want to call.
  4. Hang-up.
  5. The call will be directly connected.

Cancel Transfer

Press the cancel button. The call won’t be transferred, and the call will resume.

Transfer to voicemail

To transfer a call directly to a user’s voicemail: 

  1. Press the transfer key
  2. Dial *55 followed by the user's extension 
  3. Press send and hang up

Call Hold

Press the hold button (picture of handset and pause sign on the button) – to resume the call, press the button again. While on hold the caller will hear on-hold music/marketing message.

Call Mute

Press the button with a microphone and line through it. This will illuminate while the call is muted. No on-hold music is played and you will still hear the caller. They cannot hear you when this is active.

Loudspeaker / Handsfree Call

Press the button with the loudspeaker picture on it – this will illuminate. You can then use the phone in handsfree mode/loudspeaker.

Missed Calls / Received Calls

To view the recent calls list from the home screen select directories and then select recent calls and it will

Speed Dials

Each button on the phone can have a speed-dial allocated to it. The IT Services team can add these to your handset. Please email with the name and extension.  


(Retrieving Voicemails)
  1. Press the envelope button on your handset.
  2. It will ask you to enter your PIN followed by the ‘#’ key. The default PIN is 016254 (please contact IT for the pin complexity requirements).
  3. Select option 1.
  4. Follow the operator’s instructions to, save, delete, or return to the previous menu.


(Record Greeting)

  1. From the home screen select messages.
  2. The automated system will ask you to enter your pin followed by the # key. 
  3. It will then ask you to change your pin (it must be 6 numbers long).
  4. It will then ask you to enter your new pin again.
  5. The system will then ask you to record your personalised name greeting when you hear the tone say your first name only then press the # key immediately.
  6. If you are happy with your recording, then press the * (star) key if you are not happy to follow prompted instructions until you are happy.

Do Not Disturb

Select DND button on the handset. This will change the tick next to your extension number to a cross. The handset will not ring whilst in Do Not Disturb mode. Please select DND to take the handset out of Do Not Disturb.