diff --git a/lib/Controller/SignalingController.php b/lib/Controller/SignalingController.php
index 166e010f3..82f5a7681 100644
--- a/lib/Controller/SignalingController.php
+++ b/lib/Controller/SignalingController.php
@@ -645,9 +645,17 @@ class SignalingController extends OCSController {
 			}
 		}
 
-		$permissions = ['publish-media', 'publish-screen'];
-		if ($participant instanceof Participant && $participant->hasModeratorPermissions(false)) {
-			$permissions[] = 'control';
+		$permissions = [];
+		if ($participant instanceof Participant) {
+			if ($participant->getAttendee()->getPublishingPermissions() & (Attendee::PUBLISHING_PERMISSIONS_AUDIO | Attendee::PUBLISHING_PERMISSIONS_VIDEO)) {
+				$permissions[] = 'publish-media';
+			}
+			if ($participant->getAttendee()->getPublishingPermissions() & Attendee::PUBLISHING_PERMISSIONS_SCREENSHARING) {
+				$permissions[] = 'publish-screen';
+			}
+			if ($participant->hasModeratorPermissions(false)) {
+				$permissions[] = 'control';
+			}
 		}
 
 		$event = new SignalingEvent($room, $participant, $action);
diff --git a/lib/Signaling/BackendNotifier.php b/lib/Signaling/BackendNotifier.php
index 50f906c87..73b5d4c31 100644
--- a/lib/Signaling/BackendNotifier.php
+++ b/lib/Signaling/BackendNotifier.php
@@ -277,7 +277,13 @@ class BackendNotifier {
 				$users[] = $data;
 
 				if (\in_array($session->getSessionId(), $sessionIds, true)) {
-					$data['permissions'] = ['publish-media', 'publish-screen'];
+					$data['permissions'] = [];
+					if ($attendee->getPublishingPermissions() & (Attendee::PUBLISHING_PERMISSIONS_AUDIO | Attendee::PUBLISHING_PERMISSIONS_VIDEO)) {
+						$data['permissions'][] = 'publish-media';
+					}
+					if ($attendee->getPublishingPermissions() & Attendee::PUBLISHING_PERMISSIONS_SCREENSHARING) {
+						$data['permissions'][] = 'publish-screen';
+					}
 					if ($attendee->getParticipantType() === Participant::OWNER ||
 						$attendee->getParticipantType() === Participant::MODERATOR) {
 						$data['permissions'][] = 'control';
diff --git a/lib/Signaling/Listener.php b/lib/Signaling/Listener.php
index 9ebec18bd..e6213e5d0 100644
--- a/lib/Signaling/Listener.php
+++ b/lib/Signaling/Listener.php
@@ -130,7 +130,8 @@ class Listener {
 		// "participantsModified" once the clients no longer expect a
 		// "roomModified" message for participant type changes.
 		$dispatcher->addListener(Room::EVENT_AFTER_PARTICIPANT_TYPE_SET, $listener);
-		$dispatcher->addListener(Room::EVENT_AFTER_PARTICIPANT_TYPE_SET, static function (ModifyParticipantEvent $event) {
+
+		$listener = static function (ModifyParticipantEvent $event) {
 			if (self::isUsingInternalSignaling()) {
 				return;
 			}
@@ -151,7 +152,10 @@ class Listener {
 			}
 
 			$notifier->participantsModified($event->getRoom(), $sessionIds);
-		});
+		};
+		$dispatcher->addListener(Room::EVENT_AFTER_PARTICIPANT_TYPE_SET, $listener);
+		$dispatcher->addListener(Room::EVENT_AFTER_PARTICIPANT_PUBLISHING_PERMISSIONS_SET, $listener);
+
 		$dispatcher->addListener(Room::EVENT_BEFORE_ROOM_DELETE, static function (RoomEvent $event) {
 			if (self::isUsingInternalSignaling()) {
 				return;
diff --git a/tests/php/Controller/SignalingControllerTest.php b/tests/php/Controller/SignalingControllerTest.php
index 47bf31571..8064d8026 100644
--- a/tests/php/Controller/SignalingControllerTest.php
+++ b/tests/php/Controller/SignalingControllerTest.php
@@ -29,6 +29,7 @@ use OCA\Talk\Events\SignalingEvent;
 use OCA\Talk\Exceptions\ParticipantNotFoundException;
 use OCA\Talk\Exceptions\RoomNotFoundException;
 use OCA\Talk\Manager;
+use OCA\Talk\Model\Attendee;
 use OCA\Talk\Model\AttendeeMapper;
 use OCA\Talk\Model\SessionMapper;
 use OCA\Talk\Participant;
@@ -384,7 +385,13 @@ class SignalingControllerTest extends \Test\TestCase {
 			->with($roomToken)
 			->willReturn($room);
 
+		$attendee = Attendee::fromRow([
+			'publishing_permissions' => Attendee::PUBLISHING_PERMISSIONS_ALL,
+		]);
 		$participant = $this->createMock(Participant::class);
+		$participant->expects($this->any())
+			->method('getAttendee')
+			->willReturn($attendee);
 		$room->expects($this->once())
 			->method('getParticipant')
 			->with($this->userId)
@@ -434,7 +441,13 @@ class SignalingControllerTest extends \Test\TestCase {
 			->with($roomToken)
 			->willReturn($room);
 
+		$attendee = Attendee::fromRow([
+			'publishing_permissions' => Attendee::PUBLISHING_PERMISSIONS_ALL,
+		]);
 		$participant = $this->createMock(Participant::class);
+		$participant->expects($this->any())
+			->method('getAttendee')
+			->willReturn($attendee);
 		$room->expects($this->once())
 			->method('getParticipant')
 			->with($this->userId)
@@ -484,7 +497,13 @@ class SignalingControllerTest extends \Test\TestCase {
 			->with($roomToken)
 			->willReturn($room);
 
+		$attendee = Attendee::fromRow([
+			'publishing_permissions' => Attendee::PUBLISHING_PERMISSIONS_ALL,
+		]);
 		$participant = $this->createMock(Participant::class);
+		$participant->expects($this->any())
+			->method('getAttendee')
+			->willReturn($attendee);
 		$participant->expects($this->once())
 			->method('hasModeratorPermissions')
 			->with(false)
@@ -540,7 +559,13 @@ class SignalingControllerTest extends \Test\TestCase {
 			->with($roomToken)
 			->willReturn($room);
 
+		$attendee = Attendee::fromRow([
+			'publishing_permissions' => Attendee::PUBLISHING_PERMISSIONS_ALL,
+		]);
 		$participant = $this->createMock(Participant::class);
+		$participant->expects($this->any())
+			->method('getAttendee')
+			->willReturn($attendee);
 		$room->expects($this->once())
 			->method('getParticipantBySession')
 			->with($sessionId)
@@ -591,7 +616,13 @@ class SignalingControllerTest extends \Test\TestCase {
 			->with($roomToken)
 			->willReturn($room);
 
+		$attendee = Attendee::fromRow([
+			'publishing_permissions' => Attendee::PUBLISHING_PERMISSIONS_ALL,
+		]);
 		$participant = $this->createMock(Participant::class);
+		$participant->expects($this->any())
+			->method('getAttendee')
+			->willReturn($attendee);
 		$room->expects($this->once())
 			->method('getParticipantBySession')
 			->with($sessionId)
@@ -632,6 +663,78 @@ class SignalingControllerTest extends \Test\TestCase {
 		], $result->getData());
 	}
 
+	public function dataBackendRoomUserPublicPublishingPermissions(): array {
+		return [
+			[Attendee::PUBLISHING_PERMISSIONS_NONE, []],
+			[Attendee::PUBLISHING_PERMISSIONS_AUDIO, ['publish-media']],
+			[Attendee::PUBLISHING_PERMISSIONS_VIDEO, ['publish-media']],
+			[Attendee::PUBLISHING_PERMISSIONS_VIDEO | Attendee::PUBLISHING_PERMISSIONS_VIDEO, ['publish-media']],
+			[Attendee::PUBLISHING_PERMISSIONS_SCREENSHARING, ['publish-screen']],
+			[Attendee::PUBLISHING_PERMISSIONS_AUDIO | Attendee::PUBLISHING_PERMISSIONS_SCREENSHARING, ['publish-media', 'publish-screen']],
+			[Attendee::PUBLISHING_PERMISSIONS_VIDEO | Attendee::PUBLISHING_PERMISSIONS_SCREENSHARING, ['publish-media', 'publish-screen']],
+			[Attendee::PUBLISHING_PERMISSIONS_AUDIO | Attendee::PUBLISHING_PERMISSIONS_VIDEO | Attendee::PUBLISHING_PERMISSIONS_SCREENSHARING, ['publish-media', 'publish-screen']],
+		];
+	}
+
+	/**
+	 * @dataProvider dataBackendRoomUserPublicPublishingPermissions
+	 *
+	 * @param int $publishingPermissions
+	 * @param array $expectedBackendPermissions
+	 */
+	public function testBackendRoomUserPublicPublishingPermissions(int $publishingPermissions, array $expectedBackendPermissions) {
+		$roomToken = 'the-room';
+		$roomName = 'the-room-name';
+		$room = $this->createMock(Room::class);
+		$this->manager->expects($this->once())
+			->method('getRoomByToken')
+			->with($roomToken)
+			->willReturn($room);
+
+		$attendee = Attendee::fromRow([
+			'publishing_permissions' => $publishingPermissions,
+		]);
+		$participant = $this->createMock(Participant::class);
+		$participant->expects($this->any())
+			->method('getAttendee')
+			->willReturn($attendee);
+		$room->expects($this->once())
+			->method('getParticipant')
+			->with($this->userId)
+			->willReturn($participant);
+		$room->expects($this->once())
+			->method('getToken')
+			->willReturn($roomToken);
+		$room->expects($this->once())
+			->method('getPropertiesForSignaling')
+			->with($this->userId)
+			->willReturn([
+				'name' => $roomName,
+				'type' => Room::PUBLIC_CALL,
+			]);
+
+		$result = $this->performBackendRequest([
+			'type' => 'room',
+			'room' => [
+				'roomid' => $roomToken,
+				'userid' => $this->userId,
+				'sessionid' => '',
+			],
+		]);
+		$this->assertSame([
+			'type' => 'room',
+			'room' => [
+				'version' => '1.0',
+				'roomid' => $roomToken,
+				'properties' => [
+					'name' => $roomName,
+					'type' => Room::PUBLIC_CALL,
+				],
+				'permissions' => $expectedBackendPermissions,
+			],
+		], $result->getData());
+	}
+
 	public function testBackendRoomAnonymousOneToOne() {
 		$roomToken = 'the-room';
 		$sessionId = 'the-session';
@@ -679,7 +782,13 @@ class SignalingControllerTest extends \Test\TestCase {
 			->with($roomToken)
 			->willReturn($room);
 
+		$attendee = Attendee::fromRow([
+			'publishing_permissions' => Attendee::PUBLISHING_PERMISSIONS_ALL,
+		]);
 		$participant = $this->createMock(Participant::class);
+		$participant->expects($this->any())
+			->method('getAttendee')
+			->willReturn($attendee);
 		$room->expects($this->once())
 			->method('getParticipant')
 			->with($this->userId)