protected function logDebug($msg)
    {
        $logger = $this->client->getAsteriskLogger();
        $ani = $this->client->getChannelVariables()->getCallerIdName();
        $dnis = $this->client->getChannelVariables()->getDNIS();
        $logger->debug("NodeController: {$this->name}: $ani -> $dnis: $msg");
    }