PAGI\Client\AbstractClient::hangup PHP Method

    public function hangup($channel = false)
    {
        $cmd = 'HANGUP';
        if ($channel !== false) {
            $cmd .= ' "' . $channel . '"';
        }
        $result = $this->send($cmd);
        if ($result->isResult(-1)) {
            throw new ChannelDownException('Hangup failed');
        }
    }

 public function hangup()
 {
     $args = func_get_args();
     $this->assertCall('hangup', $args);
     return parent::hangup();
 }