Ring Groups Paging Intercom
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Ring Groups Paging Intercom

Configuring Ring Groups / Paging / Intercom

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Configuring Ring Groups / Paging / Intercom


Ring Groups



See Also


The Ring Groups / Paging and Intercom features add powerful capabilities to your PBX. Ring groups will help you to never miss that important customer call, whilst the Paging feature allows you to make announcements to groups of people rather like a PA system.

Ring Groups

A ring group allows you to direct calls to a group of extensions. For example, you could define a group of three sales people, and have the general sales number “DID” ring on all three extensions at the same time or after each other. When you create a ring group, you assign it a virtual extension number. This will be the number used by the phone system to “address” the ring group.

To add a ring group:

  1. In the 3CX Management Console, select “Ring Groups” > “Add Ring Group”.
  2. Now enter the ring group options:
  • Virtual extension number – This number identifies the ring group from other extensions. Keep the automatically generated extension number, or specify a new one as needed. Do not specify an existing extension number.
  • Name – Enter a friendly name for the ring group.
  • Ring strategy – Select the appropriate ring strategy for this ring group:
  • Prioritised Hunt – This will start ringing on the first extension, then the second etc.
  • Ring all – All phones will ring at the same time
  • Paging – This will page all extensions part of the group (see next section)
  • Ring time – Specify how long the phones should ring for.
  1. In the section “Ring group members” specify the extensions that should be part of this ring group. Simply click on the extensions to the left and click on the “Add” button to add them to the ring group. Move the extensions up or down to configure the priority of an extension.
  2. In the section “Destination if no answer”, you can define what should happen if the call does not get answered by the ring group.


Paging allows someone to ring a group of extensions and make an announcement via the phone speaker. The called party will not need to pick up the handset as the audio will be played via the phones speaker. The person paging will not hear any audio back from the people being paged. Both paging and intercom features require a phone that supports intercom and that is configured to allow it. To add a paging group:

  1. Click on “Ring Groups” > “Add Ring Group” option to bring up the “Add Ring Group” page.
  2. Now enter the ring group options:
  • Virtual extension number – Specify an extension number which will be used for this paging group.
  • Name – Enter a friendly name for the ring group.
  • Ring strategy – Select the Paging ring strategy.
  • Ring time – Specify how long the phones should ring for.
  1. If you have phones that support multicast, and you have a very large installation with specialized requirements, you can enable the Multicast option. For most installations this option is not required.
  2. In the “Ring group members” section specify the extensions that should be part of this paging ring group. Simply click on the extensions and click on “Add” to make them a member.

Important: Before using the Paging or Intercom feature make sure that you have specified the paging/intercom prefix number by:

  1. From the 3CX Management Console, select “Settings” > “Advanced” > “Dial Codes” tab and adding the paging prefix in the “Paging” field (*11 for example).
  2. Make sure that the user who is trying to page a group has the right to do so, select “Extensions” > “Edit Extension” > “Rights”, Check the “Can Intercom” option in “Rights currently assigned” section. Only needed in direct intercom calls without ring groups.

Note: The “Ring time” and “Destination if no answer” options will be ignored, since they are not relevant for paging.


The intercom feature allows a phone system user to make an announcement to a single extension. In this scenario the audio is two way, and the called party can respond immediately without picking up the handset. To call a user via the intercom function:

  1. Prefix the extension you wish to call with the paging/intercom prefix (that you specified in “Settings” > “Advanced” > “Dial codes” > “Paging” field), followed by the extension number. For example you specified the paging prefix to be *11 to make an intercom call to extension 100 you should dial: *11100.
  2. You can now announce your message.

See Also

You might also be interested in:

Ask a Question

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Leave a Reply

  1. Tracey Krasowski

    can you record a conversation on the phone

    June 23, 2015 at 9:29 pm Reply
  2. Steve Parkinson

    Is it possible to enable paging without intercom. We would like paging but don’t want the privacy invasion of intercom

    February 10, 2016 at 8:45 pm Reply
    • Charalambos Eleftheriou

      @Steve, thanks for the question. When you configure paging for a Ring Group then only paging will take place when you call into the Ring Group, intercom will only be initiated if the intercom/paging dial code is used in front of the extension number. Although to be able to intercom an extension requires the rights to do so. To enable or disable the right to intercom from an extension, from the 3CX Management console, navigate to ‘Extensions’ > ‘Edit Extension’ > click on the ‘Rights’ tab and either check (to Enable) or un-check (to Disable) the check box for ‘Can Intercom’.

      February 11, 2016 at 8:08 am
  3. Phil Zalewski

    Is it possible to set different ringtones for different ring groups? I would like to know which ring group is being contacted without having to look at the phone.

    February 17, 2016 at 1:55 am Reply
    • Charalambos Eleftheriou

      @Phil, thanks for the question. Distinctive ringing is only available between external/internal calls and Call Queues at the moment. You may also post this in our feature request page: http://www.3cx.com/ideas and if it gets enough votes and is technically possible it may very well get implemented.

      February 17, 2016 at 9:33 am
  4. Luis Castro

    It is possible to connect a analog system only for the paging feature ?

    March 23, 2016 at 4:17 pm Reply
    • Charalambos Eleftheriou

      @Luis, This is possible using a VoIP Gateway, see here for our supported gateways: http://www.3cx.com/voip-gateways/

      March 24, 2016 at 7:31 am
  5. Stuart Mainwaring

    Is there an auto attendant module and also a night option?


    May 3, 2016 at 11:17 pm Reply
  6. Austin

    If a user part of a ring group is on a call and the group receives a 2nd call, how come the users phone doesn’t ring if they’re on a call?

    May 11, 2016 at 8:22 pm Reply
    • Charalambos Eleftheriou

      @Austin, Receiving multiple calls to a single extensions from Ring Groups or Call Queues is not possible. If you would like to pick up a second call from a Ring Group you will need to first park the current call using either a BLF key configured for a shared parking place or transfer the call to parking orbit, this will release the call from the phone, you can then pick up another call using the call pick-up feature (*20*) or BLF keys configured for extensions that are in the Ring Group and are ringing.

      May 13, 2016 at 2:31 pm
  7. Signature Global

    when i add extensions in the ring group, not all of the extensions rings only 2/3 numbers ring. why don’t all the extensions ring and how do i change it so every number rings?

    July 18, 2016 at 1:37 pm Reply
    • @Signature Global All extensions should ring. If they do not ring then they are either not registered, have a fw to mobile or are set to a status that does not accept ring group calls. Check the status page per extension – available, away, DND etc etc

      July 18, 2016 at 2:21 pm
  8. Giuseppe Blanco

    If a ring group does not answer a call, is there a way to voicemail that call to the mail box of EACH member of the ring group?
    Thanks in advance

    August 29, 2016 at 9:14 pm Reply
    • Charalambos Eleftheriou

      @Giuseppe, There is no option for this but you can forward to a voicemail of an extension and have it send out an email, to a group of users configured on the your mail server, with the voicemail attached as a wav file.

      August 29, 2016 at 10:03 pm
  9. jack

    when paging, is it possible for one of the receiver to pick up the handset and talk to the sender? and just become a two way conversation?
    e.g. a person dials the page group, speaks to everyone then one of the people pick up the phone and talks back? because that feature would be great and want to know if possible?

    September 30, 2016 at 2:43 pm Reply
    • Charalambos Eleftheriou

      @Jack, Please post this in our feature request page: http://www.3cx.com/forums/3cx-ideas-f57.html and if it gets enough votes and is technically possible it may very well get implemented.

      October 3, 2016 at 5:11 pm