<?php

class CallStatus
{
	const STATUS_INCOMING = 1;
	const STATUS_OUTGOING = 2;
}

class CallRecord
{
	private $status;
	
	public function __construct(int $status)
	{
		$this->status = $status;
	}
	
	public function getStatus(): string
	{
		return $this->status;
	}
}

$cr = new CallRecord(CallStatus::STATUS_INCOMING);
var_dump($cr->getStatus() === CallStatus::STATUS_INCOMING); // false