diff --git a/lib/BigBlueButton/API.php b/lib/BigBlueButton/API.php
index 1a069d1..1b5645c 100644
--- a/lib/BigBlueButton/API.php
+++ b/lib/BigBlueButton/API.php
@@ -148,6 +148,7 @@ class API {
 		$createMeetingParams->setRecord($room->record);
 		$createMeetingParams->setAllowStartStopRecording($room->record);
 		$createMeetingParams->setLogoutUrl($this->urlGenerator->getBaseUrl());
+		$createMeetingParams->setMuteOnStart($room->getJoinMuted());
 
 		$mac = $this->crypto->calculateHMAC($room->uid);
 
diff --git a/lib/Controller/RoomController.php b/lib/Controller/RoomController.php
index 3a72119..a5252c5 100644
--- a/lib/Controller/RoomController.php
+++ b/lib/Controller/RoomController.php
@@ -118,7 +118,8 @@ class RoomController extends Controller {
 		?string $moderatorToken,
 		bool $listenOnly,
 		bool $mediaCheck,
-		bool $cleanLayout
+		bool $cleanLayout,
+		bool $joinMuted
 	): DataResponse {
 		$room = $this->service->find($id);
 
@@ -141,8 +142,8 @@ class RoomController extends Controller {
 			return new DataResponse(['message' => 'Access type not allowed.'], Http::STATUS_BAD_REQUEST);
 		}
 
-		return $this->handleNotFound(function () use ($id, $name, $welcome, $maxParticipants, $record, $access, $everyoneIsModerator, $requireModerator, $moderatorToken, $listenOnly, $mediaCheck, $cleanLayout) {
-			return $this->service->update($id, $name, $welcome, $maxParticipants, $record, $access, $everyoneIsModerator, $requireModerator, $moderatorToken, $listenOnly, $mediaCheck, $cleanLayout);
+		return $this->handleNotFound(function () use ($id, $name, $welcome, $maxParticipants, $record, $access, $everyoneIsModerator, $requireModerator, $moderatorToken, $listenOnly, $mediaCheck, $cleanLayout, $joinMuted) {
+			return $this->service->update($id, $name, $welcome, $maxParticipants, $record, $access, $everyoneIsModerator, $requireModerator, $moderatorToken, $listenOnly, $mediaCheck, $cleanLayout, $joinMuted);
 		});
 	}
 
diff --git a/lib/Db/Room.php b/lib/Db/Room.php
index a057f3d..318c3ef 100644
--- a/lib/Db/Room.php
+++ b/lib/Db/Room.php
@@ -24,6 +24,7 @@ use OCP\AppFramework\Db\Entity;
  * @method bool getListenOnly()
  * @method bool getMediaCheck()
  * @method bool getCleanLayout()
+ * @method bool getJoinMuted()
  * @method void setUid(string $uid)
  * @method void setName(string $name)
  * @method void setAttendeePassword(string $pw)
@@ -40,6 +41,7 @@ use OCP\AppFramework\Db\Entity;
  * @method void setListenOnly(bool $listenOnly)
  * @method void setMediaCheck(bool $mediaCheck)
  * @method void setCleanLayout(bool $cleanLayout)
+ * @method void setJoinMuted(bool $joinMuted)
  */
 class Room extends Entity implements JsonSerializable {
 	public const ACCESS_PUBLIC = 'public';
@@ -67,6 +69,7 @@ class Room extends Entity implements JsonSerializable {
 	public $listenOnly;
 	public $mediaCheck;
 	public $cleanLayout;
+	public $joinMuted;
 
 	public function __construct() {
 		$this->addType('maxParticipants', 'integer');
@@ -77,6 +80,7 @@ class Room extends Entity implements JsonSerializable {
 		$this->addType('listenOnly', 'boolean');
 		$this->addType('mediaCheck', 'boolean');
 		$this->addType('cleanLayout', 'boolean');
+		$this->addType('joinMuted', 'boolean');
 	}
 
 	public function jsonSerialize(): array {
@@ -97,6 +101,7 @@ class Room extends Entity implements JsonSerializable {
 			'listenOnly' => boolval($this->listenOnly),
 			'mediaCheck' => boolval($this->mediaCheck),
 			'cleanLayout' => boolval($this->cleanLayout),
+			'joinMuted' => boolval($this->joinMuted),
 		];
 	}
 }
diff --git a/lib/Migration/Version000000Date20210729200144.php b/lib/Migration/Version000000Date20210729200144.php
new file mode 100644
index 0000000..fbe989b
--- /dev/null
+++ b/lib/Migration/Version000000Date20210729200144.php
@@ -0,0 +1,42 @@
+<?php
+
+declare(strict_types=1);
+
+namespace OCA\BigBlueButton\Migration;
+
+use Closure;
+use OCP\DB\ISchemaWrapper;
+use OCP\Migration\IOutput;
+use OCP\Migration\SimpleMigrationStep;
+
+/**
+ * Auto-generated migration step: Please modify to your needs!
+ */
+class Version000000Date20210729200144 extends SimpleMigrationStep {
+
+
+	/**
+	 * @param IOutput $output
+	 * @param Closure $schemaClosure The `\Closure` returns a `ISchemaWrapper`
+	 * @param array $options
+	 * @return null|ISchemaWrapper
+	 */
+	public function changeSchema(IOutput $output, Closure $schemaClosure, array $options): ?ISchemaWrapper {
+		$schema = $schemaClosure();
+
+		if ($schema->hasTable('bbb_rooms')) {
+			$table = $schema->getTable('bbb_rooms');
+
+			if (!$table->hasColumn('join_muted')) {
+				$table->addColumn('join_muted', 'boolean', [
+					'notnull' => false,
+					'default' => false
+				]);
+			}
+		
+			return $schema;
+		}
+
+		return null;
+	}
+}
diff --git a/lib/Service/RoomService.php b/lib/Service/RoomService.php
index 8d46c76..d662009 100644
--- a/lib/Service/RoomService.php
+++ b/lib/Service/RoomService.php
@@ -88,6 +88,7 @@ class RoomService {
 		$room->setListenOnly(true);
 		$room->setMediaCheck(true);
 		$room->setCleanLayout(false);
+		$room->setJoinMuted(false);
 
 		if ($access === Room::ACCESS_PASSWORD) {
 			$room->setPassword($this->humanReadableRandom(8));
@@ -117,7 +118,8 @@ class RoomService {
 		?string $moderatorToken,
 		bool $listenOnly,
 		bool $mediaCheck,
-		bool $cleanLayout) {
+		bool $cleanLayout,
+		bool $joinMuted) {
 		try {
 			$room = $this->mapper->find($id);
 
@@ -139,6 +141,7 @@ class RoomService {
 			$room->setListenOnly($listenOnly);
 			$room->setMediaCheck($mediaCheck);
 			$room->setCleanLayout($cleanLayout);
+			$room->setJoinMuted($joinMuted);
 
 			return $this->mapper->update($room);
 		} catch (Exception $e) {
diff --git a/ts/Common/Api.ts b/ts/Common/Api.ts
index 2360164..198f6ce 100644
--- a/ts/Common/Api.ts
+++ b/ts/Common/Api.ts
@@ -42,6 +42,7 @@ export interface Room {
 	listenOnly: boolean,
 	mediaCheck: boolean,
 	cleanLayout: boolean,
+	joinMuted: boolean,
 }
 
 export interface RoomShare {
diff --git a/ts/Manager/EditRoomDialog.tsx b/ts/Manager/EditRoomDialog.tsx
index 74dc07d..ba0ff44 100644
--- a/ts/Manager/EditRoomDialog.tsx
+++ b/ts/Manager/EditRoomDialog.tsx
@@ -20,6 +20,7 @@ const descriptions: { [key: string]: string } = {
 	listenOnly: t('bbb', 'If disabled, a microphone is needed to join the conference.'),
 	mediaCheck: t('bbb', 'If enabled, the user has not to perform an echo call and webcam preview on the first join (available since BBB server 2.3).'),
 	cleanLayout: t('bbb', 'If enabled, the user list, chat area and presentation are hidden by default.'),
+	joinMuted: t('bbb', 'If enabled, all users will join the meeting muted.'),
 };
 
 const LOGO_QR = 'data:image/png;base64,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';
@@ -214,6 +215,17 @@ const EditRoomDialog: React.FC<Props> = ({ room, restriction, updateProperty, op
 					</div>
 					<p><em>{descriptions.cleanLayout}</em></p>
 				</div>
+				<div>
+					<div>
+						<input id={`bbb-joinMuted-${room.id}`}
+							type="checkbox"
+							className="checkbox"
+							checked={room.joinMuted}
+							onChange={(event) => updateProperty('joinMuted', event.target.checked)} />
+						<label htmlFor={`bbb-joinMuted-${room.id}`}>{t('bbb', 'Join meeting muted')}</label>
+					</div>
+					<p><em>{descriptions.joinMuted}</em></p>
+				</div>
 			</div>
 		</Dialog>
 	);