failed - Cognigy Documentation

Emitted when a call fails to connect or is rejected. The audioEnded event is emitted before this event. In the endInfo object, description is the SIP status code as a string, for example, 486, when the remote party rejects the call.

Category

Call

Callback parameters

Parameter	Type	Description
`session`	`CallSession`	The failed call session.
`endInfo`	`CallEndInfo`	Information about why the call failed.

Example

client.on('failed', (session, endInfo) => {
  console.error('Call failed. Cause:', endInfo.cause);
  console.error('Originator:', endInfo.originator);
  console.error('Description:', endInfo.description);
});

More information

Last modified on November 11, 2026