<?php
use Microsoft\Graph\Beta\GraphServiceClient;
use Microsoft\Graph\Beta\Generated\Models\OnlineMeeting;
use Microsoft\Graph\Beta\Generated\Models\LobbyBypassSettings;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new OnlineMeeting();
$lobbyBypassSettings = new LobbyBypassSettings();
$lobbyBypassSettings->setIsDialInBypassEnabled(true);
$requestBody->setLobbyBypassSettings($lobbyBypassSettings);
$result = $graphServiceClient->me()->onlineMeetings()->byOnlineMeetingId('onlineMeeting-id')->patch($requestBody)->wait();