# Enhanced webhook events with channel information

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## Added

-   New webhook event.
    -   `contact_center.engagement_upgrade_expired`
    -   `contact_center.engagement_upgrade_initiated`
    -   `contact_center.engagement_upgrade_completed`

## Enhancements

-   New `channel_source` field in these webhook events.
    -   `contact_center.engagement_started`
    -   `contact_center.engagement_consumer_notified`
    -   `contact_center.engagement_consumer_answered`
    -   `contact_center.engagement_user_ended`
    -   `contact_center.engagement_user_answered`
-   New `channel` field in this webhook event.
    -   `contact_center.engagement_started`