# About using OBF token in SDK

**URL:** <https://devforum.zoom.us/t/about-using-obf-token-in-sdk/139433>\
**Category:** Android\
**Created:** [December 10, 2025, 5:26am UTC](https://devforum.zoom.us/t/about-using-obf-token-in-sdk/139433 "2025-12-10T05:26:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Maple](https://avatars.discourse-cdn.com/v4/letter/m/a5b964/32.png) [@Maple](https://devforum.zoom.us/u/Maple)\
**Post date:** [December 10, 2025, 5:26am UTC](https://devforum.zoom.us/t/about-using-obf-token-in-sdk/139433/1 "2025-12-10T05:26:33Z")

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Hello,

Some clarifications about the using of OBF token, please kindly advise, thanks.

1. To join meeting by OBF token, should use `JoinMeetingParam4WithoutLogin` and set the `onBehalfToken`?
2. Will the `JoinMeetingParam4WithoutLogin.displayName` still work when using OBF? And will the display name still affectes the AI summary and Transcript?
3. For OBF tokens generated from same account, can they be used to join different meetings at the same time?

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**Author:** ![amanda-recallai](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/amanda-recallai/32/44747_2.png) [@amanda-recallai](https://devforum.zoom.us/u/amanda-recallai)\
**Post date:** [December 10, 2025, 5:57pm UTC](https://devforum.zoom.us/t/about-using-obf-token-in-sdk/139433/2 "2025-12-10T17:57:28Z")

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> To join meeting by OBF token, should use `JoinMeetingParam4WithoutLogin` and set the `onBehalfToken`?

Yes, to join a meeting via OBF on native SDKs you should use [`JoinMeetingParam4WithoutLogin` and set its `onBehalfToken` field](https://marketplacefront.zoom.us/sdk/meeting/android/classus_1_1zoom_1_1sdk_1_1_join_meeting_param4_without_login.html); this is the pattern shown in the [Meeting SDK auth docs](https://developers.zoom.us/docs/meeting-sdk/auth/)

> Will the `JoinMeetingParam4WithoutLogin.displayName` still work when using OBF? And will the display name still affects the AI summary and Transcript?

When you join with an OBF token, the client will not show up using the display name of the underlying user who generated the OBF. There’s no documentation online that I found which describes the behavior specifically for this parameter and [I don’t see the `displayName` in the docs anymore](https://marketplacefront.zoom.us/sdk/meeting/android/classus_1_1zoom_1_1sdk_1_1_join_meeting_param4_without_login.html) either though

Someone on the Zoom team would be best to comment directly on this topic

> For OBF tokens generated from same account, can they be used to join different meetings at the same time?

OBF tokens themselves are [short-lived, single-use tokens](https://developers.zoom.us/blog/transition-to-obf-token-meetingsdk-apps/) and [are scoped to individual meetings](https://developers.zoom.us/blog/transition-to-obf-token-meetingsdk-apps/#request-and-use-an-obf-token)

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<div class="post-metadata">

**Author:** ![Maple](https://avatars.discourse-cdn.com/v4/letter/m/a5b964/32.png) [@Maple](https://devforum.zoom.us/u/Maple)\
**Post date:** [December 11, 2025, 1:41am UTC](https://devforum.zoom.us/t/about-using-obf-token-in-sdk/139433/3 "2025-12-11T01:41:23Z")

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Hello @amanda-recallai

Many thanks for your response.

Please kindly see below followup

> There’s no documentation online that I found which describes the behavior specifically for this parameter and I don’t see the displayName in the docs anymore either though

The `displayName` field is in the parent class `JoinMeetingParams`

> Someone on the Zoom team would be best to comment directly on this topic

Then which category I should raise this issue to?

> OBF tokens themselves are short-lived, single-use tokens and are scoped to individual meetings

Sorry what I mean is, say if generate OBF tokens for different meetings from the same underlying user, can we join these meetings by the corresponding OBF token on different devices at the same time?

And another case, say if generate some OBF tokens for one certain meeting from the same underlying user, can we join this meeting by these OBF tokens on different devices at the same time?

Thanks