<?php
use Microsoft\Graph\Beta\GraphServiceClient;
use Microsoft\Graph\Beta\Generated\Models\VoiceAuthenticationMethodConfiguration;
$graphServiceClient = new GraphServiceClient($tokenRequestContext, $scopes);
$requestBody = new VoiceAuthenticationMethodConfiguration();
$requestBody->setOdataType('#microsoft.graph.voiceAuthenticationMethodConfiguration');
$requestBody->setIsOfficePhoneAllowed(false);
$result = $graphServiceClient->policies()->authenticationMethodsPolicy()->authenticationMethodConfigurations()->byAuthenticationMethodConfigurationId('authenticationMethodConfiguration-id')->patch($requestBody)->wait();