# Meeting SDK API Call the problem

**URL:** <https://devforum.zoom.us/t/meeting-sdk-api-call-the-problem/68046>\
**Category:** Meeting SDK\
**Tags:** meeting-sdk\
**Created:** [April 25, 2022, 9:08am UTC](https://devforum.zoom.us/t/meeting-sdk-api-call-the-problem/68046 "2022-04-25T09:08:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![wangqi](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/wangqi/32/37127_2.png) [@wangqi](https://devforum.zoom.us/u/wangqi)\
**Post date:** [April 25, 2022, 9:08am UTC](https://devforum.zoom.us/t/meeting-sdk-api-call-the-problem/68046/1 "2022-04-25T09:08:06Z")

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**Description** : When we call the API of SDK [[MobileRTC sharedRTC] isRTCAuthorized], the result returned is nil. What is the reason?

**SDK Version** : 5.10.1.3038

**Reproducible Steps** :

Calling this method [[MobileRTC sharedRTC] isRTCAuthorized] when joining a meeting or creating a new meeting to start a meeting returns nil, but not every time and was only found once during the first installation.

**Screenshots** :

 ![Snip20220425_2](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/d/4/d48a79445252447ada07c7fa2bb3d0658836ba94.png)

**Device Information** :

Device Type: ( iPhone 6S)

OS: (iOS 14.1)

**Additional Context** :  
 ![Snip20220425_3](https://us1.discourse-cdn.com/flex016/uploads/zoomdeveloper/original/3X/0/6/060fdd844adde584835c41c90d2907002c903981.png)

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<div class="post-metadata">

**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:** [May 25, 2022, 7:08pm UTC](https://devforum.zoom.us/t/meeting-sdk-api-call-the-problem/68046/2 "2022-05-25T19:08:52Z")

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Closed on May 25, 2022, 7:08pm UTC

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