# Publisher permissions WebCam and Mic

**URL:** <https://openvidu.discourse.group/t/publisher-permissions-webcam-and-mic/528>\
**Category:** Issues developing apps\
**Tags:** v2\
**Created:** [April 22, 2020, 2:52pm UTC](https://openvidu.discourse.group/t/publisher-permissions-webcam-and-mic/528 "2020-04-22T14:52:00Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![AgustinC](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/agustinc/32/268_2.png) [@AgustinC](https://openvidu.discourse.group/u/AgustinC)\
**Post date:** [April 22, 2020, 2:52pm UTC](https://openvidu.discourse.group/t/publisher-permissions-webcam-and-mic/528/1 "2020-04-22T14:52:00Z")

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I wanted to know if there’s any way that the prompt of asking for permissions for the camera and microphone doesn’t show up and has these functions directly blocked?

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**Author:** ![micael.gallego](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/micael.gallego/32/2_2.png) [@micael.gallego](https://openvidu.discourse.group/u/micael.gallego)\
**Post date:** [April 23, 2020, 3:02pm UTC](https://openvidu.discourse.group/t/publisher-permissions-webcam-and-mic/528/2 "2020-04-23T15:02:00Z")

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You have full control of the application using OpenVidu browser SDK. So you can add or remove any button in the graphical user interface to block user to publish.

Also, you can use SUBSCRIBER role when generates token. So the participant can not publish in the session.