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Create conference


Create a conference from an existing call leg using a call_control_id and a conference name. Upon creating the conference, the call will be automatically bridged to the conference. Conferences will expire after all participants have left the conference or after 4 hours regardless of the number of active participants.

Expected Webhooks:

  • conference.created
  • conference.participant.joined
  • conference.participant.left
  • conference.ended
  • conference.recording.saved
  • conference.floor.changed




Create a conference

    call_control_id stringrequired

    Unique identifier and token for controlling the call

    name stringrequired

    Name of the conference

    beep_enabled string

    Possible values: [always, never, on_enter, on_exit]

    Default value: never

    Whether a beep sound should be played when participants join and/or leave the conference.

    client_state string

    Use this field to add state to every subsequent webhook. It must be a valid Base-64 encoded string. The client_state will be updated for the creator call leg and will be used for all webhooks related to the created conference.

    comfort_noise boolean

    Default value: true

    Toggle background comfort noise.

    command_id string

    Use this field to avoid execution of duplicate commands. Telnyx will ignore subsequent commands with the same command_id as one that has already been executed.

    duration_minutes integer

    Time length (minutes) after which the conference will end.

    hold_audio_url string

    The URL of a file to be played to participants joining the conference. The URL can point to either a WAV or MP3 file. hold_media_name and hold_audio_url cannot be used together in one request. Takes effect only when "start_conference_on_create" is set to "false".

    hold_media_name string

    The media_name of a file to be played to participants joining the conference. The media_name must point to a file previously uploaded to by the same user/organization. The file must either be a WAV or MP3 file. Takes effect only when "start_conference_on_create" is set to "false".

    max_participants integer

    The maximum number of active conference participants to allow. Must be between 2 and 800. Defaults to 250

    start_conference_on_create boolean

    Whether the conference should be started on creation. If the conference isn't started all participants that join are automatically put on hold. Defaults to "true".


200: Successful response with details about a conference.

401: Unauthorized

422: Unprocessable entity