code: function SmsControl (config) {
  
      this.smsc= new GGsmsc.Client (config);     // connect onto gammu SMSgateway
  
      this.uid   = 'SmsControl://' + config.smsc;
      this.smsid = 0;  // counter use to track SMS flow
  
      // inherit debug level from config
      this.debug= config.debug;
  
  }
docs: SmsControl constructor