# 16001: Conference is not bridged

Log Level: ERROR

## Description

The conference you tried to access is not currently active. Twilio creates a conference when the first participant connects, but the conference does not start until it is bridged. If you configure a moderator, the conference does not start until the moderator joins.

### Possible causes

* The conference has only one participant, so it has not bridged yet.
* The conference is moderated, and the moderator has not joined yet.
* The conference has already ended because all participants left, or the moderator left or was disconnected.

### Possible solutions

* Retry after the conference is active and bridged. Twilio starts the conference when the second participant joins, or when the moderator joins in a moderated conference.
* If you use `startConferenceOnEnter="false"`, make sure a participant with `startConferenceOnEnter="true"` joins, or have the moderator join to begin the conference.
* Use the Conference resource or `statusCallback` events to track conference state.
* If the conference has completed, create a new conference and add participants there.

#### Additional resources

* [Voice Conference](/docs/voice/conference)
* [Conferences resource](/docs/voice/api/conference-resource)