# Several new webhooks; new engagement, invitee fields in Call Control APIs, Messaging APIs, and Messaging webhook

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## Added

-   New **Call Control** webhook event:
    -   `contact_center.call_control_unhold_call_executed`
    -   `contact_center.call_control_hold_call_executed`
    -   `contact_center.call_control_answer_call_executed`
-   New **Conference** webhook event:
    -   `contact_center.engagement_conference_participant_canceled`
    -   `contact_center.engagement_conference_participant_joined`
    -   `contact_center.engagement_conference_participant_invited`
    -   `contact_center.engagement_conference_participant_rejected`
    -   `contact_center.engagement_conference_canceled`
    -   `contact_center.engagement_conference_participant_left`
    -   `contact_center.engagement_conference_participant_timeout`

## Changed

-   New `sms_message`, `opt_in_required`, `flow_id`, `create_engagement`, `engagement_id`, and `new_engagement` request fields in this **Messaging** API:
    -   `POST /v2/contact_center/messages`
-   New `invitee_id` and `invitee_type` request fields in this **Call Control** API:
    -   `POST /v2/contact_center/users/{userId}/commands`
-   New `queue_id`, `queue_wait_type`, `voice_mail`, and `transferCount` response fields in this **Engagements** API:
    -   `GET /v2/contact_center/engagements`
-   New `cc_user_id`, `next_page_token`, and `page_size` response fields in this **Inboxes** API:
    -   `GET /v2/contact_center/inboxes/{inboxId}/users`
-   New `cc_user_id` response field in this **Skills** API:
    -   `GET /v2/contact_center/skills/{skillId}/users`
-   New `engagement_id` and `sms_message` fields in this **Messaging** webhook event:
    -   `contact_center.message_status`