# Specify Caller ID when triggering call-out via API

**URL:** <https://devforum.zoom.us/t/specify-caller-id-when-triggering-call-out-via-api/138428>\
**Category:** API and Webhooks\
**Created:** [October 31, 2025, 10:49am UTC](https://devforum.zoom.us/t/specify-caller-id-when-triggering-call-out-via-api/138428 "2025-10-31T10:49:21Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bes](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/bes/32/67003_2.png) [@bes](https://devforum.zoom.us/u/bes)\
**Post date:** [October 31, 2025, 10:49am UTC](https://devforum.zoom.us/t/specify-caller-id-when-triggering-call-out-via-api/138428/1 "2025-10-31T10:49:21Z")

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**API Endpoint(s) and/or Zoom API Event(s)**

Use in-meeting controls (`participant.invite.callout`)

> **[Meetings APIs](https://developers.zoom.us/docs/api/meetings/#tag/meetings/patch/live_meetings/%7BmeetingId%7D/events)**
>
> The Zoom Meeting APIs allow developers to interface with Zoom Meetings and Webinars programmatically.

**Description**  
In a meeting, I am triggering a call-out to add a participant into the meeting by calling them on the phone. This works (the phone call is triggered, and the participant can join). However, I’d like to specify the caller ID (calling number) for the callout.

When I use the Zoom UI to do the callout, I can select the Caller ID to be used. How can I select this number when triggering the callout via the API?

**Error?**  
No error.

**How To Reproduce**

1. Initiate a meeting via any means

2. Perform a callout via the API as below

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<div class="post-metadata">

**Author:** ![elisa.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/elisa.zoom/32/47836_2.png) [@elisa.zoom](https://devforum.zoom.us/u/elisa.zoom)\
**Post date:** [November 4, 2025, 4:02pm UTC](https://devforum.zoom.us/t/specify-caller-id-when-triggering-call-out-via-api/138428/2 "2025-11-04T16:02:13Z")

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Hi @bes  
Thanks for reaching out to us!  
It looks like the caller\_id is not supported via API.  
But allow me to look further into this and will get back to you soon.

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**Author:** ![system](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/6/1/614bdd549b610bbaa46ff934617683a02bdaa03c.png) [@system](https://devforum.zoom.us/u/system)\
**Post date:** [November 8, 2026, 7:38am UTC](https://devforum.zoom.us/t/specify-caller-id-when-triggering-call-out-via-api/138428/3 "2026-11-08T07:38:31Z")

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Closed on November 8, 2026, 7:38am UTC

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