<?php
use Microsoft\Graph\Beta\GraphServiceClient;
use Microsoft\Graph\Beta\Generated\Communications\Calls\Item\Transfer\TransferPostRequestBody;
use Microsoft\Graph\Beta\Generated\Models\InvitationParticipantInfo;
use Microsoft\Graph\Beta\Generated\Models\EndpointType;
use Microsoft\Graph\Beta\Generated\Models\IdentitySet;
use Microsoft\Graph\Beta\Generated\Models\Identity;
use Microsoft\Graph\Beta\Generated\Models\ParticipantInfo;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new TransferPostRequestBody();
$transferTarget = new InvitationParticipantInfo();
$transferTarget->setEndpointType(new EndpointType('default'));
$transferTargetIdentity = new IdentitySet();
$transferTargetIdentityUser = new Identity();
$transferTargetIdentityUser->setId('550fae72-d251-43ec-868c-373732c2704f');
$transferTargetIdentityUser->setDisplayName('Heidi Steen');
$additionalData = [
'tenantId' => '72f988bf-86f1-41af-91ab-2d7cd011db47',
];
$transferTargetIdentityUser->setAdditionalData($additionalData);
$transferTargetIdentity->setUser($transferTargetIdentityUser);
$transferTarget->setIdentity($transferTargetIdentity);
$requestBody->setTransferTarget($transferTarget);
$transferee = new ParticipantInfo();
$transfereeIdentity = new IdentitySet();
$transfereeIdentityUser = new Identity();
$transfereeIdentityUser->setId('751f6800-3180-414d-bd94-333364659951');
$additionalData = [
'tenantId' => '72f988bf-86f1-41af-91ab-2d7cd011db47',
];
$transfereeIdentityUser->setAdditionalData($additionalData);
$transfereeIdentity->setUser($transfereeIdentityUser);
$transferee->setIdentity($transfereeIdentity);
$transferee->setParticipantId('909c6581-5130-43e9-88f3-fcb3582cde37');
$requestBody->setTransferee($transferee);
$additionalData = [
'languageId' => 'languageId-value',
'region' => 'region-value',
];
$requestBody->setAdditionalData($additionalData);
$graphServiceClient->communications()->calls()->byCallId('call-id')->transfer()->post($requestBody)->wait();