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CallTower Solutions Center

CT Cloud Voice - Poly VVX 311



Reference Feature Feature Description 
1 Security Slot (on top) Enables you to attach a universal security cable lock to your phone so you can secure it to a desktop.
2 Reversible tab Secures the handset in the cradle when your phone stand is positioned at a high angle. To secure the handset, remove the tab, reverse it so the protrusion points up, and re-insert it. Position the handset so the protrusion on the tab fits into the slot on the handset.
3 Speaker Provides ringer and speakerphone audio output.
4 Soft Keys Enable you to select context-sensitive keys that display along the bottom of the screen.
5 Transfer Key Transfers an active call to a contact.
6 Dialpad keys Enables you to enter numbers, letters, and special characters. You can also use the dial pad keys to select menu items that have index numbers. 
Key Enables you to access and manage instant and voice messages.
8 Hold Key Holds an active call or resumes a held call.
9 Microphone Transmits audio to other phones.
10  Volume Keys Adjust the volume of the handset, headset, speaker, and ringer. 
11 Mute Key Mutes local audio during calls and conferences. The key glows red when activated. 
12 Speaker phone key Enable you to place and receive calls using the speaker phone. The key glows green when activated. 
13 Headset Key Enables you to place and receive calls through a headset. The key glows green when an analog headset is activated and blue when a USB or Bluetooth headset is activated.
14 Navigation Key/Select Key Scrolls through information or options displayed on the phone's screen. Selects a field of displayed data.
15 Home Key Displays the Home screen from other screens, and displays the Lines and Calls screen from the Home screen.
16 Line Keys Enable you to select a phone line, view calls on a line, or quickly call a favorite contact.
17 Screen Shows a 3.2-inch (8.3 cm) diagonal screen with a backlight that enables you to view menus and data.
18 Message Waiting Indicator  Flashes red to indicate when you have new messages.

Place a Call from the Dialer

The Dialer enables you to enter a number to place a call and displays a list of previously placed calls. As you enter numbers, the Dialer displays a list of similar numbers in your directory. Select a match to automatically enter the number.


1.  Do one of the following: 

  •  Start typing a phone number
  • Select New Call.
  • Press a line key.
  • Pick up the handset, press the headset icon, or press the speaker icon

2. Enter a number or select a recent contact.

3.  Select Dial or tap the phone icon.

Note: Your administrator can set up your phone to automatically place the call after you enter a certain number of digits. If a call is placed before you enter all the digits, add the number to your Contact Directory and dial the number from the Contact Information screen

Answering Audio Calls

When you receive an incoming call on your phone, you can choose to answer the call in various ways, including answering calls in the Incoming Calls screen, in the Calls screen, during a call, automatically, and using a headset or the speakerphone.

Answer an Incoming Call

When you receive an incoming call, your phone rings, and an Incoming Call screen is displayed, as shown next. In the Incoming Call screen, you can choose to answer or reject the incoming call.


Note: Your system administrator can enable the screen to flash bright orange when you have an incoming call. The screen continues to flash until the incoming call is displayed in the Home or Calls screen. For more information about this feature, contact your system administrator.


Do one of the following:

  • Pick up the handset.
  • Press or select Answer.
  • Press the speaker icon or select the headset icon, 

 After you answer the incoming call, the call becomes active.  When you don't answer an incoming call within 10 seconds, the Incoming Call screen disappears, and the Calls screen is displayed.

Mute and Unmute Audio

You can mute the microphone so other parties cannot hear you. Microphone Mute applies to the handset, headset, and speakerphone. You can still hear all other parties when you mute your microphone. When your audio is muted, the Mute icon is displayed, and the Mute key glows red.


1.  During a call, including a conference call, press the mute button. The other parties cannot hear you.

2. Press again to unmute the microphone.

Holding and Resuming Calls

Hold a call:

When you are on a call, you can place a call on hold and resume the call. 

You can place any active call on hold.

  • During an active call, select Hold.
    • If you're in the Calls screen, highlight the call first. A hold icon is displayed on the line of the held call, and a red LED light flashes on the line key for all phones.

Resume a Calla:

You can view and resume all held calls in the Active Call, Lines, and Calls screens.

Do one of the following:

  • Select Resume.
  • From the Calls screen, select the call to highlight it, and select Resume.

End an Active Audio Call

You can end an active call on your phone at any time.

Do one of the following:

  • Place the handset on the cradle.
  • Press End Call.
  • In the Calls screen, highlight the call and press End Call.

End a Held Call

You cannot end calls that are on hold. You must resume held calls before ending them.

From the Calls screen, select the held call and press Resume > End Call.

Transferring Calls

You can transfer active or held calls to another person using the following transfer types:

  • Blind transfer Transfer calls directly to another line without speaking with the other party first.
  • Consultative transfer Speak with the other party before completing the transfer.

Choose a Default Transfer Type:

You can choose a default transfer type to use for all calls or choose a transfer type during a call. When you choose a default transfer type, you can press the Transfer soft key, and your phone uses the set transfer type for all calls. Consultative is set as the transfer type by default.


1.  Navigate to Settings > Basic > Preferences > Default Transfer Type.

2. On the Default Transfer Type screen, choose a transfer type. The selected transfer type is used for all calls.

Transfer a Call:

You can transfer a call to another contact and choose the transfer type you want to use for the call.


1.  During a call, do one of the following :

  • Press Transfer to use the default transfer type.
  • Press and hold Transfer and select a transfer type.

2.  Dial a number or choose a contact from the call list or directory. If the transfer type is set to Blind, the call is transferred immediately.

3. If the transfer type is set to Consultative, press Transfer after speaking with your contact.

Cancel a Transfer:

If a contact does not answer the transfer or you want to remain speaking with the contact on your line, you can cancel the transfer before it is complete.

  • Select Cancel. The call is not transferred and becomes active

For the full user guide, click the PDF below: 


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